Arturia Keystep User manual

U
US SE ER R’ ’S S M MA AN NU UA AL L

2 ARTURIA –KeyStep –USER’S MANUAL
PROGRAMMING:
Sebastien Colin
Olivier Delhomme
INDUSTRIALIZATION:
Nicolas Dubois
MANUAL:
Randy Lee
Sebastien Rochard
DESIGN:
Glen Darcey
Morgan Perrier
Axel Hartmann
© ARTURIA SA –2016 –All rights reserved.
11 Chemin de la Dhuy
38240 Meylan
FRANCE
http://www.arturia.com
Information contained in this manual is subject to change without notice and does not represent a commitment
on the part of Arturia. The software described in this manual is provided under the terms of a license
agreement or non-disclosure agreement. The software license agreement specifies the terms and conditions for
its lawful use. No part of this manual may be reproduced or transmitted in any form or by any purpose other
than purchaser’s personal use, without the express written permission of ARTURIA S.A.
All other products, logos or company names quoted in this manual are trademarks or registered trademarks of
their respective owners.
March 2016 edition

ARTURIA –KeyStep –USER’S MANUAL 3
T
Th ha an nk k y yo ou u f fo or r p pu ur rc ch ha as si in ng g t th he e A Ar rt tu ur ri ia a K Ke ey yS St te ep p! !
This manual covers the features and operation of Arturia’s KeyStep, a full-featured USB
MIDI keyboard controller complete with a polyphonic sequencer, arpeggiator, a robust
set of MIDI and C/V connections, and outfitted with our new Slimkey keyboard for
maximum playability in the minimum space.
In this package you will find:
One KeyStep controller, with a serial number and unlock code on the bottom. You
will need this information in order to register your KeyStep.
One USB Micro B / Type A cable
The Quick Start Guide for KeyStep.
Also included in the purchase of your KeyStep is a free installation of Ableton Live Lite, a
remarkably full-featured recording / sequencing application. The license number will be
provided to you when you register your KeyStep on the Arturia website. Then you can
download the installation file from ableton.com/live-lite.
Be sure to register your KeyStep as soon as possible! There is a sticker on the
bottom panel that contains the serial number of your unit and an unlock code. These
are required during the online registration process. You may want to record these
elsewhere or take a photo of the sticker in case it becomes damaged.
Registering your KeyStep provides the following benefits:
A product license key for your installation of Ableton Live Lite [see note below]
Access to the KeyStep user manual and the latest version of the MIDI Control
Center software
Special offers restricted to KeyStep owners.
You can download the installation file from ableton.com/live-lite.

4 ARTURIA –KeyStep –USER’S MANUAL
S
Sp pe ec ci ia al l M Me es ss sa ag ge e S Se ec ct ti io on n
SPECIFICATIONS SUBJECT TO CHANGE:
The information contained in this manual is believed to be correct at the time of printing.
However, Arturia reserves the right to change or modify any of the specifications without
notice or obligation to update the hardware that has been purchased.
IMPORTANT:
The product and its software, when used in combination with an amplifier, headphones
or speakers, may be able to produce sound levels that could cause permanent hearing
loss. DO NOT operate for long periods of time at a high level or at a level that is
uncomfortable.
If you encounter any hearing loss or ringing in the ears, you should consult an
audiologist.
NOTICE:
Service charges incurred due to a lack of knowledge relating to how a function or feature
works (when the product is operating as designed) are not covered by the
manufacturer’s warranty, and are therefore the owner's responsibility. Please study this
manual carefully and consult your dealer before requesting service.
PRECAUTIONS INCLUDE, BUT ARE NOT LIMITED TO, THE FOLLOWING:
1. Read and understand all the instructions.
2. Always follow the instructions on the instrument.
3. Before cleaning the instrument, always remove the USB cable. When cleaning,
use a soft and dry cloth. Do not use gasoline, alcohol, acetone, turpentine or any
other organic solutions; do not use a liquid cleaner, spray or cloth that's too wet.
4. Do not use the instrument near water or moisture, such as a bathtub, sink,
swimming pool or similar place.
5. Do not place the instrument in an unstable position where it might accidentally
fall over.
6. Do not place heavy objects on the instrument. Do not block openings or vents of
the instrument; these locations are used for air circulation to prevent the
instrument from overheating. Do not place the instrument near a heat vent at
any location with poor air circulation.
7. Do not open or insert anything into the instrument that may cause a fire or
electrical shock.
8. Do not spill any kind of liquid onto the instrument.
9. Always take the instrument to a qualified service center. You will invalidate your
warranty if you open and remove the cover, and improper assembly may cause
electrical shock or other malfunctions.
10. Do not use the instrument with thunder and lightning present; otherwise it may
cause long distance electrical shock.
11. Do not expose the instrument to hot sunlight.
12. Do not use the instrument when there is a gas leak nearby.
13. Arturia is not responsible for any damage or data loss caused by improper
operation of the instrument.

ARTURIA –KeyStep –USER’S MANUAL 5
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Ta ab bl le e o of f C Co on nt te en nt ts s
1INTRODUCTION ........................................................................................................................................9
2KEYSTEP OVERVIEW............................................................................................................................10
2.1 MAKING THE CONNECTIONS ..................................................................................................................10
2.1.1 …with a Computer........................................................................................................................10
2.1.2 …with external devices .................................................................................................................10
2.1.2.1 CV/Mod/Gate............................................................................................................................................11
2.1.2.2 MIDI devices ............................................................................................................................................11
2.1.2.3 Clock sources/destinations........................................................................................................................11
2.1.3 …with an iPad®............................................................................................................................11
2.2 FRONT PANEL OVERVIEW ......................................................................................................................12
2.2.1 Sequencer / arpeggiator................................................................................................................12
2.2.1.1 Seq / Arp toggle switch.............................................................................................................................13
2.2.1.2 Seq / Arp modes........................................................................................................................................13
2.2.1.3 Time Division ...........................................................................................................................................13
2.2.1.4 Rate...........................................................................................................................................................13
2.2.2 Tap Tempo / Rest / Tie..................................................................................................................13
2.2.3 Transport section..........................................................................................................................13
2.2.3.1 All Notes Off.............................................................................................................................................14
2.2.4 Hold / Chord button......................................................................................................................14
2.2.5 Shift button....................................................................................................................................14
2.2.6 Oct -/+, Transpose, Kbd Play.......................................................................................................14
2.2.7 Pitch / Mod touch strips................................................................................................................15
2.3 REAR PANEL OVERVIEW ........................................................................................................................15
2.3.1 USB/DC IN ...................................................................................................................................15
2.3.2 9V DC IN (with optional adapter) ................................................................................................15
2.3.3 Pitch/Gate/Mod outputs................................................................................................................15
2.3.4 Sustain pedal input .......................................................................................................................16
2.3.5 Sync input/output ..........................................................................................................................16
2.3.6 MIDI input/output.........................................................................................................................16
2.3.7 Sync source selector switches.......................................................................................................16
2.3.8 Kensington lock port.....................................................................................................................16
3BASIC OPERATIONS...............................................................................................................................17
3.1 PLUG AND PLAY.....................................................................................................................................17
3.1.1 Slimkey keyboard..........................................................................................................................17
3.1.2 Keyboard MIDI channel...............................................................................................................17
3.1.3 Pitch / Mod touch strips................................................................................................................17
3.1.3.1 The Pitch strip...........................................................................................................................................17
3.1.3.2 The Mod strip............................................................................................................................................17
3.1.4 Hold button...................................................................................................................................17
3.1.5 Sustain pedal.................................................................................................................................18
3.1.6 Oct - / Oct +..................................................................................................................................18
3.1.7 Factory reset.................................................................................................................................18
3.2 SELECT AND PLAY A SEQUENCE.............................................................................................................18
3.2.1 Seq / Arp toggle switch .................................................................................................................18
3.2.2 Seq / Arp Mode encoder................................................................................................................18
3.2.3 Transport section..........................................................................................................................19
3.2.4 Set the tempo.................................................................................................................................19
3.2.5 Time Division................................................................................................................................19
3.3 USING THE ARPEGGIATOR......................................................................................................................19
3.3.1 Seq / Arp toggle switch .................................................................................................................19
3.3.2 Seq / Arp Mode encoder................................................................................................................19
3.3.3 Transport section..........................................................................................................................19
3.3.4 Set the tempo.................................................................................................................................20
3.3.5 Time Division................................................................................................................................20
3.3.6 Hold button...................................................................................................................................20
4SHIFT FUNCTIONS..................................................................................................................................21

6 ARTURIA –KeyStep –USER’S MANUAL
4.1 CHORD MODE........................................................................................................................................21
4.1.1 Chords and the sequencer.............................................................................................................21
4.1.1.1 Seq Recording and Chord mode................................................................................................................22
4.1.1.2 Seq playback and Chord mode..................................................................................................................22
4.1.2 Chords and the arpeggiator..........................................................................................................22
4.2 KEYBOARD MIDI CHANNEL..................................................................................................................22
4.3 SEQ /ARP PLAYBACK FUNCTIONS..........................................................................................................23
4.3.1 Gate ..............................................................................................................................................23
4.3.2 Swing ............................................................................................................................................23
4.3.3 Transpose / Kbd Play....................................................................................................................24
4.3.3.1 Transpose..................................................................................................................................................24
4.3.3.2 Keyboard Play...........................................................................................................................................24
4.3.4 Skip selections: Seq / Arp..............................................................................................................24
4.3.5 Skip selections: Time Division......................................................................................................24
4.3.6 Restart Seq / Arp from beginning..................................................................................................25
4.4 SHIFT FUNCTION CHART ........................................................................................................................25
5CREATING SEQUENCES........................................................................................................................26
5.1 WHAT’S A STEP SEQUENCER?................................................................................................................26
5.2 CREATING A SEQUENCE.........................................................................................................................26
5.2.1 Step-time recording.......................................................................................................................27
5.2.1.1 Entering rests ............................................................................................................................................27
5.2.1.2 Tie notes....................................................................................................................................................28
5.2.1.3 Legato notes..............................................................................................................................................28
5.2.2 Real-time record/replace..............................................................................................................29
5.2.2.1 Replacing notes.........................................................................................................................................29
5.2.2.2 Restart.......................................................................................................................................................30
5.2.2.3 Time Div and recording ............................................................................................................................30
5.2.2.4 Time Div and Rate....................................................................................................................................30
5.2.3 What does it record?.....................................................................................................................30
5.2.3.1 A note about velocity................................................................................................................................30
5.2.4 What it does not record.................................................................................................................31
5.3 MODIFYING A SEQUENCE.......................................................................................................................31
5.3.1 Append..........................................................................................................................................31
5.3.2 Clear Last .....................................................................................................................................32
5.4 SAVING SEQUENCES...............................................................................................................................32
6THE ARPEGGIATOR...............................................................................................................................33
6.1 WHAT’S AN ARPEGGIATOR? ..................................................................................................................33
6.2 ARPEGGIATOR FEATURES ......................................................................................................................33
6.3 ARPEGGIATOR MODES ...........................................................................................................................34
6.3.1 Start the arpeggiator.....................................................................................................................34
6.3.2 Arp mode: Up ...............................................................................................................................34
6.3.3 Arp mode: Down...........................................................................................................................34
6.3.4 Arp mode: Inclusive......................................................................................................................34
6.3.5 Arp Mode: Exclusive.....................................................................................................................35
6.3.6 Arp Mode: Random.......................................................................................................................35
6.3.7 Arp Mode: Order ..........................................................................................................................35
6.3.8 Arp Mode: Up x2 ..........................................................................................................................35
6.3.9 Arp Mode: Down x2......................................................................................................................36
6.4 BUILD A MULTI-OCTAVE ARPEGGIO.......................................................................................................36
6.4.1 Add up to 32 notes ........................................................................................................................36
6.5 PAUSING AN ARPEGGIO..........................................................................................................................37
7SYNCHRONIZATION..............................................................................................................................38
7.1 AS MASTER ...........................................................................................................................................38
7.2 AS SLAVE..............................................................................................................................................38
7.2.1 Sync In/Out types..........................................................................................................................39
7.2.2 Clock connectors ..........................................................................................................................39
8CV/GATE/MOD FUNCTIONS.................................................................................................................40

ARTURIA –KeyStep –USER’S MANUAL 7
8.1 PITCH AND GATE SIGNALS.....................................................................................................................40
8.1.1 How do Pitch and Gate work?......................................................................................................40
8.1.2 Can my DAW send CV/Gate signals?...........................................................................................40
8.2 MODULATION (MOD)OUTPUT...............................................................................................................41
8.2.1 How does the Mod output work? ..................................................................................................41
8.2.2 Can my DAW control the Mod output?.........................................................................................41
8.3 ROUTING THE SIGNALS ..........................................................................................................................41
8.4 CV/GATE/MOD SPECIFICATIONS ...........................................................................................................41
9MIDI CONTROL CENTER BASICS ......................................................................................................43
9.1 SYSTEM REQUIREMENTS........................................................................................................................43
9.2 INSTALLATION AND LOCATION..............................................................................................................43
9.3 CONNECTION.........................................................................................................................................43
9.4 BACK UP YOUR SEQUENCES...................................................................................................................44
9.5 WHERE TO FIND THE MANUAL ...............................................................................................................44
10 USING MIDI CONTROL CENTER....................................................................................................45
10.1 THE SYNC OPTION .................................................................................................................................45
10.1.1 Sync operations.............................................................................................................................45
10.1.2 Non-sync operations.....................................................................................................................45
10.2 DEVICE PROJECTS .................................................................................................................................46
10.2.1 The Working Project.....................................................................................................................46
10.2.1.1 Live editing...........................................................................................................................................46
10.2.1.2 Drag and drop.......................................................................................................................................46
10.3 PROJECT BROWSER................................................................................................................................47
10.3.1 Building a library .........................................................................................................................47
10.3.2 Revise a Template.........................................................................................................................48
10.3.2.1 While synced ........................................................................................................................................48
10.3.2.2 Not synced............................................................................................................................................48
10.3.3 Send one sequence to KeyStep......................................................................................................49
10.3.3.1 When synced ........................................................................................................................................49
10.3.3.2 When not synced ..................................................................................................................................49
10.4 STORE TO/RECALL FROM......................................................................................................................50
10.4.1 The ‘Store To’ button....................................................................................................................50
10.4.2 Recall edited sequences from KeyStep..........................................................................................51
10.4.3 Save, Delete, Import/Export, etc...................................................................................................51
10.5 IMPORT/EXPORT DEVICE SETTINGS.......................................................................................................51
10.5.1 Export Device Settings..................................................................................................................51
10.5.2 Import Device Settings..................................................................................................................52
10.6 EDITING BASICS.....................................................................................................................................52
10.6.1 Data entry.....................................................................................................................................52
10.6.2 Selecting the tabs..........................................................................................................................52
10.6.3 Seq tab ..........................................................................................................................................53
10.6.4 Device Settings tab........................................................................................................................53
10.7 SEQUENCE WINDOW ..............................................................................................................................53
10.7.1 Navigation.....................................................................................................................................54
10.7.1.1 Scroll ....................................................................................................................................................54
10.7.1.2 Zoom ....................................................................................................................................................54
10.7.2 Per-sequence parameters .............................................................................................................54
10.7.2.1 Seq Length............................................................................................................................................55
10.7.2.2 Seq Swing %.........................................................................................................................................55
10.7.2.3 Seq Gate length.....................................................................................................................................56
10.7.3 Sequence events ............................................................................................................................56
10.7.3.1 Enter/delete notes .................................................................................................................................56
10.7.3.2 Move notes ...........................................................................................................................................56
10.7.3.3 Copy/paste notes...................................................................................................................................57
10.7.3.4 Note velocity ........................................................................................................................................57
10.7.3.5 Change the Gate time............................................................................................................................57
10.7.3.6 Tie a note..............................................................................................................................................58
10.8 SEQUENCE MANAGEMENT .....................................................................................................................58
10.8.1 Copy a Seq tab to another Seq tab................................................................................................58
10.8.2 Drag/drop onto a tab....................................................................................................................59

8 ARTURIA –KeyStep –USER’S MANUAL
10.9 WORKING WITH DEVICE SETTINGS........................................................................................................60
10.9.1 Common features..........................................................................................................................60
10.9.1.1 MIDI Channel.......................................................................................................................................60
10.9.2 MIDI Controller settings ..............................................................................................................61
10.9.2.1 User Channel ........................................................................................................................................62
10.9.2.2 MIDI Input Channel .............................................................................................................................62
10.9.2.3 MIDI Thru............................................................................................................................................62
10.9.2.4 Sustain Pedal Mode ..............................................................................................................................62
10.9.2.5 Sustain Pedal Function .........................................................................................................................62
10.9.2.6 Hold Switch Mode................................................................................................................................62
10.9.2.7 Hold Switch Function...........................................................................................................................62
10.9.2.8 Sustain Message MIDI Ch....................................................................................................................62
10.9.2.9 Sustain Message Range Low................................................................................................................62
10.9.2.10 Sustain Message Range High ...............................................................................................................62
10.9.2.11 Sustain Message CC.............................................................................................................................63
10.9.2.12 Mod strip MIDI Ch...............................................................................................................................63
10.9.2.13 Mod strip CC........................................................................................................................................63
10.9.2.14 Pitch Bend MIDI Ch.............................................................................................................................63
10.9.2.15 Velocity curve ......................................................................................................................................63
10.9.2.16 Aftertouch curve...................................................................................................................................63
10.9.3 Sequence settings..........................................................................................................................64
10.9.3.1 Sync Clock In/Out settings ...................................................................................................................65
10.9.3.2 Sync Clock Start...................................................................................................................................65
10.9.3.3 Next Seq ...............................................................................................................................................65
10.9.3.4 Transposition Input port .......................................................................................................................65
10.9.3.5 Transpose Input channel.......................................................................................................................65
10.9.3.6 Transposition Latch..............................................................................................................................65
10.9.3.7 Transpose Center Pitch.........................................................................................................................66
10.9.3.8 Velocity ................................................................................................................................................66
10.9.3.9 Fixed Velocity value.............................................................................................................................66
10.9.3.10 Tempo knob mode................................................................................................................................66
10.9.3.11 Tap Tempo average ..............................................................................................................................66
10.9.4 CV/Gate settings ...........................................................................................................................67
10.9.4.1 Pitch CV Output ...................................................................................................................................67
10.9.4.2 Gate CV Output....................................................................................................................................68
10.9.4.3 MIDI Note reference (0V, 1V) .............................................................................................................68
10.9.4.4 Note Priority.........................................................................................................................................68
10.9.4.5 Mod CV source.....................................................................................................................................68
10.9.4.6 Mod CV max voltage............................................................................................................................68
10.9.4.7 Pitch Bend Range .................................................................................................................................68
10.9.5 Transport settings .........................................................................................................................69
11 ARTURIA KEYSTEP –LEGAL INFORMATION............................................................................70
11.1 FCC INFORMATION (USA)...............................................................................................................70
11.2 CANADA.............................................................................................................................................70
11.3 EUROPE...............................................................................................................................................70

ARTURIA –KeyStep –USER’S MANUAL 9
1INTRODUCTION
Congratulations on your purchase of the Arturia KeyStep! This unique keyboard
controller gives you everything you need to make music wherever you and your portable
tech will be. Its compact size is due in part to its Slimkey keyboard; these great-feeling
keys are smaller than standard piano keys but still large enough to allow for maximum
playability. But this is no toy; as with all Arturia products, it’s built like a tank.
All the essential features of a keyboard controller are here, including aftertouch, touch-
strips for pitch bend and modulation, a footswitch input and a Hold button.
The polyphonic sequencer will capture your ideas and the arpeggiator will unleash them.
You can specify the exact feel of your music through the Swing and Gate parameters,
which are instantly accessible from the front panel. And the chord memory feature will
make you seem like even more of a musical monster than you already are.
KeyStep has an unlimited number of potential uses and setup options, thanks to its
simultaneous USB, MIDI, CV/Gate and synchronization capabilities. There’s an additional
Mod connection to complement the CV and Gate outputs, allowing for even more
creative options with external devices such as modular synthesizers. And the included
MIDI Control Center software allows you to configure KeyStep the way that works best
for your style and system.
KeyStep is very easy to use, so you’ll probably start experimenting with it right out of
the box. But be sure to read this manual completely, because in addition to covering the
basics we’ll also describe several ways to integrate this little powerhouse of a controller
with your system. You will find KeyStep to be a great source of musical inspiration and
creativity.
Be sure to visit www.arturia.com. That’s the place to go for the latest firmware and to
download the MIDI Control Center. You’ll also find links to our tutorials and FAQs.
We will leave the two of you alone now. You have a lot of great music to make!

10 ARTURIA –KeyStep –USER’S MANUAL
2KEYSTEP OVERVIEW
2.1 Making the connections
There are quite a few ways to connect KeyStep with other types of equipment, from
vintage to modern. Below are some examples of potential setups:
2.1.1 …with a Computer
KeyStep is a USB class-compliant controller, so at its most basic level it can be
connected to any computer with a USB port and used as an input device for various
applications. The included MIDI Control Center software lets you choose which MIDI
messages will be sent by the mod strip and pedal, and also enables you to specify the
global KeyStep parameters.
However, KeyStep can also be used without a computer attached! In this case, simply
use a 9V DC power supply (not included) or a standard USB mobile phone charger to
power the unit. Then connect everything else as shown in the following diagrams.
2.1.2 …with external devices
As you can see, KeyStep can be at the center of some amazing systems.

ARTURIA –KeyStep –USER’S MANUAL 11
2.1.2.1 CV/Mod/Gate
KeyStep will send control voltages to non-MIDI devices through its Pitch, Mod and Gate
connectors. It also can send data to those devices from the USB port of your computer.
2.1.2.2 MIDI devices
Lots of mid-vintage devices have MIDI jacks but don’t have CV/Gate connectors or USB
ports. KeyStep can plug directly into them and also serve as a USB MIDI converter.
2.1.2.3 Clock sources/destinations
The Clock input and output connectors allow KeyStep to synchronize with lots of different
clock types: a single pulse per step, two pulses per step, 24 pulses per quarter note
(ppqn), and 48 ppqn. Between these four options you are ready to connect with almost
any imaginable music technology.
See section 7.2.2 for specific information about what cables to use for the various sync
connections and formats.
2.1.3 …with an iPad®
Add a camera connection kit and KeyStep becomes the perfect companion for an iPad.
This enables it to be used as a controller for Arturia’s iMini, iSem or iProphet
applications, for example.
If you have an iPad but you don’t already own those virtual instruments, please take a
look at them on our website! They are very affordable, and live up to Arturia’s reputation
for modeling the sound of analog synthesizers with warmth and precision.

12 ARTURIA –KeyStep –USER’S MANUAL
2.2 Front panel overview
1. Sequencer / Arpeggiator section (see 2.2.1)
2. Tap Tempo / Rest / Tie (see 2.2.2)
3. Transport section (see 2.2.3)
4. Hold / Chord (with Shift) (see 2.2.4)
5. Shift button (see 2.2.5)
6. Keyboard functions (with Shift) (see 2.2.5)
7. Oct - / Transpose (with Shift) (see 2.2.6)
8. Oct + / Kbd Play (with Shift) (see 2.2.6)
9. Pitch / Mod touch strips (see 2.2.7)
2.2.1 Sequencer / arpeggiator
KeyStep provides a sequencer and an arpeggiator. You can record eight different
sequences, each with up to 64 steps. The arpeggiator generates notes based on the keys
you have pressed and plays them back according to the Arp Mode setting.
The sequencer and arpeggiator have unique features, so be sure to read chapter 4 and
chapter 5 to learn more.

ARTURIA –KeyStep –USER’S MANUAL 13
2.2.1.1 Seq / Arp toggle switch
When this switch is set to Seq a sequence can be played or recorded. The controls in this
section select which sequence is active and the time division at which it will be played
back.
When the switch is set to Arp the controls select the pattern and the time division for the
arpeggiator.
2.2.1.2 Seq / Arp modes
The function of the Seq / Arp Mode encoder changes depending on which mode is
selected. In sequencer mode it selects which of the eight sequences is active. In
arpeggiator mode it selects which pattern will be used to play back the notes you hold on
the keyboard.
For a full explanation of these features, see chapter 6 (Projects) and chapter 10 (Control
Mode).
2.2.1.3 Time Division
The Time Div encoder determines the rhythmic value of the active sequence or arpeggio.
Eight different settings are available.
We’ll go into this in greater detail in chapter 3.
2.2.1.4 Rate
Use the Rate knob to control the tempo of the sequence or arpeggio. The Tap button can
also be used. The tempo can be set between 30-240 bpm (beats per minute).
The MIDI Control Center allows you to choose how the Rate knob responds when it is
turned: either immediately (Jump mode) or after you pass through the current value
(Pick-up mode). See chapter 10 to learn about the MIDI Control Center.
2.2.2 Tap Tempo / Rest / Tie
The Tap button allows you to set the tempo of the active sequence or
arpeggio “on the fly”. All you have to do is tap it in time with the music. The
number of taps it takes to adjust the tempo can be defined in the MIDI
Control Center.
This button is also used to enter rests or to tie two notes together when
creating a sequence. See section 5.2.1 for information about this.
2.2.3 Transport section
The Transport buttons control the sequencer, the arpeggiator, and external MIDI devices
using MIDI Machine Control. But they also can send other MIDI messages if your DAW
does not respond to MMC commands. Use the MIDI Control Center to make changes.
All three buttons are active in sequencer mode, while only Play/Pause and Stop are used
with the arpeggiator.

14 ARTURIA –KeyStep –USER’S MANUAL
Each button has an addition function when creating a sequence (Append, Clear Last, and
Restart). These features will be described in detail in section 5.2.1.
2.2.3.1 All Notes Off
The Stop button has an additional function. If for some reason you end up with a stuck
note, just press the Stop button quickly three times in a row. KeyStep will then send an
All Notes Off command over MIDI.
2.2.4 Hold / Chord button
The Hold button enables you to add more notes to the arpeggiator while it is running (up
to 32!). It is also used with the Shift button to toggle Chord mode on and off.
There’s more information about the Hold and Chord modes in chapters 3 and 4.
2.2.5 Shift button
The Shift button allows access to secondary functions such as Chord mode and the MIDI
channel setting for the keyboard. It also can be used to modify the feel of the sequence
“on the fly” by changing the Swing and Gate time settings. All of these features involve
holding the Shift button and pressing another button or a key.
For a complete chart of Shift functions, see section 4.4.
2.2.6 Oct -/+, Transpose, Kbd Play
These buttons are a quick way to shift the keyboard in octave increments. The further
you shift from the center, the faster they flash. Maximum transposition is +/- 4 octaves.
Press both buttons at the same time to reset the keyboard to its center octave.
The blue letters under the buttons tell you that the Shift and Oct–/Oct+ buttons are used
together to change the way the keyboard behaves while a sequence is running:
Shift + Oct Minus Transpose mode: the keys will transpose the sequence while it
is running.
Shift + Oct Plus Kbd Play mode: The keys are able to play independently in
addition to the part the sequencer is playing. It is possible to specify a separate MIDI
channel for Kbd Play mode.
Transpose and Kbd Play modes are mutually exclusive. Pressing the Shift button
will light up either the Oct Minus or Oct Plus button to indicate which of the two
modes is active.

ARTURIA –KeyStep –USER’S MANUAL 15
More about these features in section 4.3.3.
2.2.7 Pitch / Mod touch strips
These innovative controls take the place of the standard “wheels”.
Their MIDI Channels can be assigned separately by the MIDI
Control Center, and the Mod strip can even be assigned to any
MIDI Continuous Controller number (CC#).
See chapter 10 to learn more about using the MIDI Control Center.
2.3 Rear panel overview
2.3.1 USB/DC IN
This jack provides the power and data connections to a computer. It can also be used
with a standard USB mobile phone charger, allowing you to use KeyStep even without a
computer present.
2.3.2 9V DC IN (with optional adapter)
KeyStep can be used as a stand-alone device without a computer or tablet present.
Simply connect an optional power adapter to your KeyStep (9V DC, 500ma, positive to
ground).
2.3.3 Pitch/Gate/Mod outputs
These are normally used to send electrical signals to an external device such as Arturia’s
popular analog synthesizers (MiniBrute/SE, MicroBrute/SE, MatrixBrute) or to a modular
analog synthesizer.
The Pitch output is often referred to as Control Voltage or CV. The Gate output is
sometimes known as a Trigger. The Mod output is a second type of Control Voltage
output that can be routed to any number of destinations on the target device.
The MIDI Control Center allows you to configure the type of electrical signals sent by
each output. See section 8.4 for information about the signal types that are supported.
If your mobile device does not supply enough power, you will need to connect a
power adapter as described above (not included).

16 ARTURIA –KeyStep –USER’S MANUAL
2.3.4 Sustain pedal input
Connect a momentary footswitch (optional) to this input. It is best to connect the pedal
before supplying power to the KeyStep so it can sense the pedal’s polarity. Be sure to
keep your foot off the pedal when first making the connection or could work backward. If
this happens, disconnect KeyStep from the power source and start over.
2.3.5 Sync input/output
These jacks allow KeyStep to interface with pre-MIDI technology that was capable of
synchronization, such as early drum machines by Korg and Roland. See section 7.2.1 for
information about the types of sync signals KeyStep can send and receive.
2.3.6 MIDI input/output
Connect standard MIDI cables and KeyStep can send MIDI data to external MIDI-
compatible devices. It will also send MIDI data to those devices from your computer.
In addition to MIDI note data from the keys, KeyStep can send and receive MIDI sync.
It’s also possible to configure some of KeyStep’s controls to send specific MIDI data
using the MIDI Control Center.
2.3.7 Sync source selector switches
There are four synchronization options which are accessed on
the rear panel. Use the small slider switches as shown in the
diagram to select the option you want.
For descriptions of the various sync settings see chapter 7.
2.3.8 Kensington lock port
KeyStep is highly portable, and it should be carried only where you
want it to go. So we’ve included a Kensington lock slot on the far
right edge of the rear panel so you can secure it to the surface of
your choice.
The picture at right has both switches down. It corresponds
to the Internal sync option.

ARTURIA –KeyStep –USER’S MANUAL 17
3BASIC OPERATIONS
3.1 Plug and play
Connect KeyStep to your computer or an external device as shown in section 2.1 and
you’re ready to go! Here are a few pointers to make the most of your first session.
3.1.1 Slimkey keyboard
The Slimkey keyboard is both velocity- and pressure-sensitive (sometimes called
“aftertouch”). You can specify the velocity curve and aftertouch response using the MIDI
Control Center. See chapter 10 for details.
3.1.2 Keyboard MIDI channel
If you need to match the KeyStep MIDI channel to the external device, this is easily
done. Simply hold the Shift button and press the key that corresponds to the desired
MIDI channel.
3.1.3 Pitch / Mod touch strips
The Pitch and Mod touch strips are similar to the standard wheels in how they work,
except that you slide your finger along the track instead of moving a wheel.
3.1.3.1 The Pitch strip
The Pitch strip has a center zone which equals no change. Moving your finger forward
bends the pitch upward, and moving backward bends the pitch downward.
When you release your finger the Pitch strip will snap back to zero.
3.1.3.2 The Mod strip
The Mod strip works like a mod wheel: from minimum to maximum. Placing your finger
at the bottom of the Mod strip (the side closest to you) equals no modulation, and
moving your finger all the way up causes maximum modulation.
But when you lift your finger the Mod strip does not snap to zero.
3.1.4 Hold button
The Hold button enables the arpeggiator to keep playing after you take your fingers off
the keys. But there’s another way to use it, too: when Hold mode is active, you can keep
adding notes to an arpeggio as long as you continue holding down at least one key.
We’ll provide step-by-step instructions in chapter 6: The arpeggiator.
When the MIDI channel is changed the Kbd Play MIDI channel will change to match
it. To select an independent MIDI channel for Kbd Play mode, see section 4.3.3.2.

18 ARTURIA –KeyStep –USER’S MANUAL
3.1.5 Sustain pedal
If you have a momentary footswitch, plug it into the Sustain jack on the rear panel. If it
works backward, disconnect KeyStep from its power source and then reconnect it.
KeyStep will sense the polarity of the pedal and it should work fine after that.
There are several configuration options for the Sustain pedal in the MIDI Control Center.
See chapter 10 for information.
3.1.6 Oct - / Oct +
Pushing one of these buttons can transpose the keyboard by as much as four octaves up
or down. The farther from center the keyboard has been transposed, the faster the
buttons will flash.
To reset the keyboard octave range back to center, press both buttons at the same time.
3.1.7 Factory reset
The Octave buttons are also used to reset all features of your KeyStep back to the
factory specifications. To do this:
Unplug KeyStep from its power source
Press the Oct- and Oct+ buttons and keep them down
Plug KeyStep back into the power source
KeyStep will go through a longer version of its power-up LED sequence, which will end
with the Hold/Shift/Oct-/Oct+ buttons flashing in a circular pattern twice.
3.2 Select and play a sequence
3.2.1 Seq / Arp toggle switch
To use the sequencer you must first set the Seq/Arp toggle switch to Seq. The position
marked Arp selects the arpeggiator, which is covered in section 3.3.
3.2.2 Seq / Arp Mode encoder
Use the Seq/Arp Mode encoder to select one of the eight available sequences. If the
sequencer is already running, the MIDI Control Center allows you to specify when the
next sequence should start. See chapter 10 for a description.
After pressing one of the Octave buttons the transposition will not occur until the
next note is played.
The sequencer will not run if the sync selection switches are set to something other
than Internal and no external clock is present.
Chord mode has limited functionality in Seq mode. We’ll describe how the two
work together in section 4.1.1.

ARTURIA –KeyStep –USER’S MANUAL 19
You can record your own music into any one of the eight sequences; we’ll learn how to
do this in chapter 5.
3.2.3 Transport section
Press the Play/Pause button and the sequence will start. Press it again to pause the
sequence, and another time to resume playback from where you stopped.
To start a sequence from the beginning, press the Stop button and then press Play
again.
3.2.4 Set the tempo
Use the Rate knob or the Tap button to adjust the playback tempo. You can also set the
exact tempo of the sequence before starting the sequencer by pressing the Tap button a
few times.
With the MIDI Control Center you can specify how many taps of the Tap button it takes
to adjust the tempo, and also how the Rate knob will respond when it is turned. See
chapter 10 for more information.
3.2.5 Time Division
The Time Division encoder allows you to change the rhythmic relationship of the
sequence relative to the tempo: quarter notes (one step per beat), eighth notes (two
steps per beat), and so on. Triplet values are offered as well (1/4T, 1/8T, etc.).
3.3 Using the arpeggiator
3.3.1 Seq / Arp toggle switch
To use the arpeggiator you must first set the Seq/Arp toggle switch to Arp. The Seq
position selects the sequencer, which is covered in section 3.2.
3.3.2 Seq / Arp Mode encoder
Use the Seq/Arp Mode encoder to select one of the eight arpeggiator Modes: Up, Down,
Inclusive, Exclusive, Random, Order, Up x2, and Down x2.
The Modes are described more fully in chapter 6.
3.3.3 Transport section
Press the Play/Pause button, hold down some keys and the arpeggiator will start. You
can add up to 32 notes to an arpeggio; chapter 6 will show you how.
Press the Play/Pause button again to pause the arpeggio pattern, and another time to
resume playback from where you stopped.
The arpeggiator will not run if the sync selection switches are set to something
other than Internal and no external clock is present.

20 ARTURIA –KeyStep –USER’S MANUAL
To start an arpeggio pattern from the beginning, press the Stop button. Then press Play
again and hold down some keys.
3.3.4 Set the tempo
Use the Rate knob or the Tap button to adjust the playback tempo. You can also set the
exact tempo of the arpeggio pattern before starting the arpeggiator by pressing the Tap
button a few times.
With the MIDI Control Center you can specify how many taps of the Tap button it takes
to adjust the tempo, and also how the Rate knob will respond when it is turned. See
chapter 10 for more information.
Remember: Tap tempo and the Rate knob will not function when KeyStep is set to one of
the external sync sources.
3.3.5 Time Division
The Time Division encoder allows you to change the rhythmic relationship of the
arpeggio relative to the tempo: quarter notes (one step per beat), eighth notes (two
steps per beat), and so on. Triplet values are offered as well (1/4T, 1/8T, etc.).
3.3.6 Hold button
When the Hold button is lit you can lift your fingers off the keys and the arpeggio will
keep playing. It will keep running until you play another note or chord, at which point
the new note(s) will become a new arpeggio.
You may add as many as 32 notes to your arpeggio as long as you continue to hold
down at least one key. The notes you play will be added to the arpeggio at the nearest
time division increment.
The same rule applies with large arpeggios: once you release all of the keys the arpeggio
you have constructed will continue to run until you play another note or chord.
For even more in-depth coverage of the arpeggiator see chapter 6.
It will be more obvious what the different Arp Modes do when you are holding
down three or more keys.