Brotech Electronics Mini Midi Sequencer+ User manual

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Brotech Electronics
M ini Mid i Se qu en cer +
Mega Mid i Sequ encer
Tablet Wireless Midi
Controller - Sequencer - Player

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
The Brotech Electronics Mini Midi Sequencer+ (mMS) and Mega Midi Sequencer (MMS) are tablet controlled
midi players used to stream and play midi files to an external midi device. It was designed especially for use with
midi enabled automated musical instruments such as a band organ. It works with any standard midi to parallel
interface already built into the instrument. The system reads type 0 midi files from a local SD memory card, decodes
and sequences the midi information and streams it to an external device.
The MMS hardware is controlled wirelessly via Bluetooth linked to an Android 7" tablet (8” HD tablet optional).
The tablet acts as a remote directory and file name viewer and selector; select any song in the scrolling list, tap on
it and it plays. The system will also play songs in a playlist that can be created using a text editor, or our companion
App, MMS Playlist Editor - songs play in order, as they appear in the playlist –once through, sequential continuous
loop, or random continuous.
The mMS+/MMS App has soft keys for Play Selection, Stop, Play Sequential, Play Random, Tempo change, and
more... File and directory names are viewable in an alphabetically sorted scrolling list.
An easy way to get acquainted with how the system operates, is to view the demonstration videos on the Brotech
Electronics YouTube channel. A link to the video may be found on the Brotech Electronics website,
www.brotechelectronics.com
Mega Midi Sequencer Hardware Controls
The Mega Midi Sequencer system consists of customhardware (MMS),
and custom mMS+/MMS application (App) running on a standard
Android enabled tablet. The following describes the MMS hardware
controls and features.
Play Mode 3 Position Rotary Control
Auto Sequential Play - Automatically play songs sequentially in the currently selected
directory. This is a stand alone local mode and does not require the tablet. Simply select Auto
Sequential, and all songs in the current directory will play in sequential order. After the last
song, it loops back to the first song, and repeats. It keeps playing sequentially until another
mode is selected or the device is powered off.
Auto Random Play –Automatically play songs randomly in the currently selected directory.
This is a stand alone local mode and does not require the tablet. Simply select Auto Random,
and all songs in the current directory will play in randomorder. It keeps playing randomly until
another mode is selected or the device is powered off.
Tablet Remote –Control the mMS+/MMS hardware with the tablet. See tablet controls for
operating details
Song Interval - Sets delay or silent time between songs, 0 thru 60 seconds, used during Auto
Sequential or Auto Random Play. The interval setting is checked each time between songs, and can be adjusted and
set while the Mega Midi Sequencer continues to play. The delay time appears on the LCD display when the MMS
is stopped. A countdown timer is visible during the interval on both the display and the tablet. Countdown can be
interrupted by turning the knob fully counter-clockwise, or by pressing the STOP button on the linked tablet.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Mini Midi Sequencer+ Hardware Controls
The Mini Midi Sequencer+ system also has a Play Mode switch, and
operates similarily to the Mega Midi system.
mMS+/MMS Ports
The Mega Midi Sequencer (MMS) ports are located on the left side, the Mini Midi (mMS) on the rear panel.
Midi I/O Connector: A standard midi compliant 5-pin female DIN
connector. The digital output is midi standard compliant
SD Memory: A slot on the left side (MMS), front (mMS) accepts standard
SD Memory card. Push to seat, depress again to release.
DC Power Jack: The DC power jack is located on the left side on the
MMS, and front on the mMS. It accepts 5.5mm x 2.1mm DC barrel plug,
center positive polarity.
USB (mMS only): future feature
Power Indicator and Bluetooth Status LED (mMS+ only): When power is applied this LED lights and indicates
status; red = power on no Bluetooth connected, blue = Bluetooth connected; blinking red and blue = various
operating and error conditions (described later).
General Tablet Information
The system uses a standard Android operating system tablet. It’s a fully functional unmodified tablet and comes
with original packaging and documentation, and the end user is encouraged to refer to this for general operation.
Also, the tablet is unregistered, and can be registered by visiting the manufacturer website.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
The tablet is included with the mMS+/MMS App preloaded, and the mMS+/MMS Bluetooth hardware initialized
(can also be done by the end user). For the mMS+/MMS App it operates in portrait mode only.
Mini+ and Mega Midi Sequencer App –Soft-Key Controls and Indicators
After the mMS+/MMS App on the tablet is running (by tapping on it on the Tablet home screen), and a connection
is made to the mMS+/MMS hardware, the following controls, buttons, and displays are available.
Mega Midi Sequencer Soft-Keys
STOP: This button stops the currently playing midi song, and/or terminates the autoplay. It silences all notes.
PLAY SEQUENTIAL CONTINUOUS: Play all songs in the current directory in sequential order. When it finishes
playing the last song, the mMS+/MMS loops to the first song and begins again. It keeps playing until STOP.
PLAY RANDOM CONTINUOUS: Play all songs in the current directory in random order. Will play until STOP.
BTCONNECT: When tapped lightly this reasserts the Bluetooth connection. When pressed and held, it restarts the
program to the initial Bluetooth device linking screen.
Scrolling Song and Directory list: This is a list of directories located on the SD Memory card {Root} and midi song
file names in the currently selected directory. The user scrolls through the list vertically to select songs to play or a
directory to switch to.
Selection Bar: When one taps on a scrolling list entry it is copied to this yellow bar. When the bar is then tapped,
the bar turns green (showing it’s active), and the song plays or the hardware changes directories and uploads a new
scrolling list. During automatic play, the selection bar will be green and show the delay countdown and the next
song to be played, or the currently playing song.
BPM up/down: Two skeleton buttons are available labeled BPM UP and BPM DN for adjusting tempo, faster or
slower (up or down). They only work when a song is playing. The tempo change is briefly shown on the selection
bar. Each tap is 1 BPM change, plus or minus. It is not permanent and only affects the currently playing song.
DLY up/down (mMS+ only): For the mMS+ the two skeleton buttons are dual purpose. When a song is not playing
they are labeled DLY UP and DLY DN, and are used for adjusting in-between song interval delay, longer or shorter
(up or down). The change is briefly indicated on App selection bar. Each tap is 1 second change, plus or minus. The
change will be applied to all subsequent autoplay, but is not permanent and will reset to default when the mMS+
hardware is reset or powered off. The default delay time can be set by the user in the configuration file.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
DIR: This information cell shows the currently selected directory or playlist. It cannot be pressed, and is updated
automatically upon start-up and change directory.
Bluetooth Status light: when Bluetooth is active and connected, a blinking green indicator dot is displayed on the
BTCONNECT button. When Bluetooth is disconnected or not active, this light changes from blinking green to
blinking red. If Bluetooth had been connected and disconnects, the App will try to reconnect automatically.
Status Messages: status messages appear from time to time briefly on the display and then disappear.
Tablet sleep mode: After initializing and running the mMS+/MMS App, the user might select Play Sequential or
Random continuous using the App soft buttons. If set to play continuous in this way, the tablet can enter a sleep
state (or even be shut off) and the mMS+/MMS will continue playing automatically in that current play mode. When
the tablet wakes again the Bluetooth automatically reconnects without user intervention, unless the tablet has been
powered off completely. In that case the App must be restarted, and Bluetooth connection reestablished manually.
Operation
Midi File Storage and Organization
Midi Files are stored locally on the mMS+/MMS SD memory card. The end user adds directories and songs to
the memory card using a personal computer and SD memory card adapter. Multiple directories can be created in
the {/Root} directory, and the user can add midi files to these directories. One can have a basic directory such as
MAIN_DIR, where all songs are kept; or theme named directories such as PATRIOTIC where all patriotic songs
are kept; TEST_DIR, where test midi files might be kept, and etcetera. Any directory name is fine, conforming to
standard file and directory naming conventions. There is no limit to the number of directories, and each directory
can contain up to 1500 midi files (any songs beyond 1500 are ignored)
File and Directory Structure
The SD Memory card is formatted FAT32. The directories and midi filenames can consist of any combination of
not reserved alphanumeric text in accordance with standard file naming convention. Directories can only exist in
the {/Root} directory - subdirectories off existing directories are not allowed. Example;
Allowed /MAIN_DIR
Allowed /TEST_DIR
Not Allowed /MAIN_DIR/SOME_OTHER_DIR
Not Allowed /MAIN_DIR/SOME_OTHER_DIR/SOME_OTHER_DIR_2
Midi files canappear in any of the directories and the {/Root} directory. Other files can also appearon the memory
card, but only {/Root} directory names and filenames ending in “.mid” and playlists ending in “.lst” and the
configuration file “MegaMidiConfig.txt”are used - and all other files are ignored.
The maximum filename length = 88 characters, and the maximum directory name length = 88 characters. Files
or directories with names greater than 88 characters are ignored.
Connecting to the Tablet

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
When first running the mMS+/MMS App on the tablet, the user must select the
Bluetooth Device to connect to; it is usually –MEGAMIDI for the MMS, and
MINIMIDI + for the mMS+. The mMS+/MMS hardware the Play Mode must be
set to Remote. Naturally, the mMS+/MMS hardware must also be powered on.
Immediately after selecting the Bluetooth device and establishing connection, all
midi and playlist filenames in the default directory, and all directory names in
the {/Root} directory are uploaded to the tablet. This happens very quickly at
115k baud. Only the file and directory names are uploaded and not the actual and
complete midi song files - only the names After connecting and automatically
uploading the directory and file names, a scrolling list is created on the tablet.
After connecting or changing directories, all mid and playlist filenames are uploaded
from the mMS+/MMS hardware to the tablet, and a scrolling song list is created
Standard Remote Tablet Control
In standard remote tablet play mode, the tablet acts as a remote directory and midi file name viewer and selector.
The directory and filenames are shown in a sorted vertical scrolling list on the tablet, with directory names always
listed first, any playlist names listed second, and midi file names shown last.
One can scroll through the list and select and play any song by tapping on it. In a
similar way, one can select a new directory by tapping on it (equivalent to changing
directories on a computer). Whenever a new directory is selected, a new scrolling
list is automatically created with only the midi and playlist file names found in that
directory. For example, if the user selects TEST_DIR, a new scrolling list is created
showing only the midi songs and playlists in the TEST_DIR directory.
Any individual song can be selected and played. To do so, one taps on the song in
the scrolling list and it is immediately copied to the yellow Selection bar. Tapping
on the yellow bar sends the file name to the mMS+/MMS hardware, and it begins
playing it. As this happens, the selection bar text and background simultaneously
turns bright green indicating that the song is playing.
Similarly, one can select a directory from the scrolling list, and it is copied to the selection bar. Tapping on the bar
causes the mMS+/MMS hardware to change directories. Immediately a new scrolling list is created on the tablet
showing all of the midi songs in the new directory.
If one selects a playlist, then only the songs in the playlist are shown in the scrolling list, appearing in order as they
appear in the playlist.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Soft-Keys Sequential Continuous Play and Random Continuous Play
Besides selecting and playing individual songs, one can press the tablet soft keys PLAY SEQUENTIAL
CONTINUOUS, or PLAY RANROM CONTINUOUS. When tapped the playing mode will be indicated with bright
green text, and the mMS+/MMS hardware will continuously play all files in the current directory until the STOP
button is pressed. The song name of each new song that is playing is displayed on the tablet on the Selection Bar.
Before each song plays, if a delay is set a countdown to next song play will be indicated.
Play Continuous Random –the currently playing song is displayed
on the Selection Bar
Tempo Change using Soft-Keys BPM UP and BPM DN
When any song is playing, the user can press the BPM UP or BPM DN soft keys on the tablet to change the song
tempo up or down (faster or slower). Each soft-key press is a change of 1 BPM, plus or minus, and is briefly display
on the selection bar. The tempo change is not permanent and only affects the currently playing song. If a tempo
change has been made and the song is stopped and started again, the original tempo is used.
Auto Play and Tablet Sleep Mode
When the mMS+/MMS hardware is set by the tablet into any of the playing modes; play a song, Random or
Sequential Continuous auto play, the tablet can be put into sleep state to conserve battery power and the
mMS+/MMS hardware will continue playing uninterrupted in the current play mode.
During sleep there is no active communication between the tablet and the hardware. Upon wakening the tablet,
the Bluetooth automatically reestablishes connection without user intervention. It takes a few seconds to completely
wake-up and reconnect and the user must wait until status message Bluetooth Connected Successfully, before
pressing any of the soft keys.
Also, it may take one song cycle (one song finish playing, and then the next song) to see the currently playing
song refreshed on the tablet selection bar.
Tablet waking and automatically reconnecting
mMS+/MMS Stand-Alone Operation –without Tablet

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
The mMS+/MMS hardware can play in a very limited way autonomously without the tablet. Simply power on the
mMS+/MMS, and using the Play Mode selector control select either of Auto Sequential Play or Auto Random Play.
The mMS+/MMS hardware immediately begins playing all songs in the current directory in the selected mode. It
will play continuously until the selection is reset to Remote and the song ends. For sequential autoplay, the
mMS+/MMS sequences through all of the midi files, and when finished starts over again. If there is an interval
delay set, the play can be aborted before starting by turning the selection knob to remote.
MMS (only) Song Interval Control
Set this control when the MMS is not playing a song to any value 0 thru 60 seconds, and it will insert silence
between automatically playing songs. The interval is checked each time before a song begins to play. A countdown
timer is displayed on the tablet and MMS LCD screen to alert when the next song is about to begin. As it’s counting
down, the user can quickly turn the knob counter-clockwise to terminate the delay early and begin playing. This is
not a precise control, and so there are no time markings indicated.
mMS+ Song Interval Control
On the mMS App home screen, when no song is playing the two skeleton buttons are labeled DLY UP and DLY
DN and are used to adjust the in-between song intervaltime –the silence between songs during auto play. The range
is 0 thru 60 seconds. Tap the DLY UP key to increase the delay, and DLY DN to decrease it, in 1 second increments.
The change is briefly indicated on App selection bar. The change is not permanent and will reset to default delay
anytime the mMS hardware is reset. The default delay can be set by editing the configuration file item, PlayDelay.
Playlist –Playing Songs in a Playlist, and Creating a playlist
Playing Songs in a Playlist
The mMS+/MMS can play songs in a playlist that the user can create. From the scrolling list select an existing
playlist and tap on it, and it is copied to the yellow selection bar. Tap on the bar and the playlist opens and a new
scrolling list appears showing all of the files in the playlist. In addition, the lower right directory field now shows
the playlist filename as the selected directory, LST:/some_list_filename.lst. The new scrolling list shows the
playlist songs listed in order as they appear in the playlist –the list is not sorted.
At the beginning of the midi file list in the scrolling list is the playlist name prefixed with PLAY LIST:. Tapping
on this will copy it to the selection bar. If the selection bar is tapped the mMS+/MMS will play through all songs
in the list one time, and in the order that they appear in the list. It stops playing at the end of the last song. If one
instead selects Play Sequential Continuous, then the list is played from beginning to end, and then loops back
again to the beginning and keeps playing. If one selects Play Random Continuous, then all songs in the list are
played in random order until the STOP button is pressed.
Creating a Playlist
A playlist can be created using the MMS tablet and our MMS Playlist Editor App, or by using a personal computer.
These instructions are for using a personal computer. The MMS Playlist Editor App has its own instructions.
The playlist can be written using any text editor such as Notepad, but whatever program is used it must be a basic
text editing program without formatting. The playlist is stored on the local SD memory card in any directory
including the {/Root} directory. Create a list using a personal computer, and save it to any directory on the SD
memory card. Then restart the mMS+/MMS hardware, link the tablet and the list may be opened and played.
Each line in a playlist can contain 1 complete midi song name, and end with a standard carriage return. There can
be no other alphanumeric characters on the same line as a song name. Each song name must be complete including
“.mid”, and including THE DIRECTORY LOCATION on the SD memory card. If a song name is inaccurate, or

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
not found in an indicated directory, the mMS+/MMS hardware will skip playing it. For example, this is a complete
song name;
Lila W125 3132-02N.mid
… and this is an incomplete song name because it is missing the ending “.mid”, and it will not play;
Lila W125 3132-02N
… and this is a complete song name that has extraneous characters on the same line and it will not play;
Lila W125 3132-02N.mid (I really like this song)
Furthermore, if this song is located in directory MAIN_DIR, then it must appear in the playlist file as
MAIN_DIR/ Lila W125 3132-02N.mid
Or
/MAIN_DIR/ Lila W125 3132-02N.mid
If it is missing the directory reference, it cannot be found and cannot be played. (As a note, the forward slash at
the beginning of a song name indicates that it is located in the {/Root} directory. It is unnecessary to include this
reference because the mMS+/MMS hardware always automatically adds this reference)
A properly formatted playlist might therefore look like this;
Early In The Morning Waltz W125 313403MN.mid
MAIN_DIR/Lila W125 3132-02N.mid
BLUESRAG/Bull Frog Blues W125 3035-06N.mid
IRISHDIR/My Wild Irish Rose Waltz W125 3103-09N.mid
PATRIOTI/PTROTC Under The Double Eagle March W125 3143-060.mid
Notice that except for the first line, all the songs begin with their directory location. The first line implies that the
song exists in the {/Root} directory.
Operating Tips
Reconnecting Bluetooth: Press and hold the BTConnect softkey on the tablet to restart, reselect, and reconnect the
Bluetooth link. Example: if after connecting, the mMS+/MMS hardware is powered off and powered on again while
the tablet App is running, press and hold the BTConnect button to go to the Bluetooth link screen. This button may
also be tapped once quickly to reassert the Bluetooth connection. When tapped lightly it verifies Bluetooth link, and
if disconnected tries to reestablish the connection.
Removing the SD Memory card while operating or playing a song: Whenever the SD memory card is removed and
replaced while the mMS+/MMS hardware is powered on, the hardware will go through a soft-reset –the
mMS+/MMS firmware will begin again as though first powered on. However, soft reset does not change the status
of the BLuetooth, and so if it was linked to the tablet, it will remain linked during the soft reset. While the bluetooth
is unaffected by a soft reset, the tablet and mMS+/MMS still need to be resynchronized –do so by selecting the
{/Root} or any known directory. Do not remove the SD card during active communication directory change, which
might cause the App to freeze, requiring a manual reset.
Autoplay delay: During autoplay, new songs will begin playing after the Song Interval Timer counts down to zero.
Once started, rotating the Interval delay knob fully counter-clockwise will terminate the count-down early, and the
song will play immediately. If linked to the tablet, pressing the STOP button will terminate play. If linked to the
tablet, the countdown will appear on the selection bar with the next song to play indicated.
Tablet Sleep Mode: After wirelessly linking the tablet and Blutooth, the tablet can be put into sleep mode to conserve
battery power. When sleeping there is no active communication between the tablet and mMS+/MMS. When the
tablet wakes it will take a moment for the communication link to be automatically reestablished. Avoid pressing
any of the softkeys until the BTConnect status indicator is again blinking green.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Active Communication Interruption: This system relies upon active communication between the tablet and the
mMS+/MMS hardware. If the communication link is broken during directory change command, the App or
mMS+/MMS hardware or both may freeze, and either or both may have to be reset or restarted. If a directory change
has been initiated, let the process complete before changing the Bluetooth status, such as putting the tablet to sleep.
Filename Transfer Speed: Transferring filenames to the tablet should take approximately 4 seconds per 500 songs
with average filename length of 37 characters. If the transfer takes much longer than this, try reformatting the SD
memory card, using FAT32 file system.
Tablet and mMS+/MMS synchronization: After linking the tablet and MMS+/mMS hardware, if the hardware is
powered off and on again, even though the bluetooth may relink automatically, it will become unsynchronized with
the tablet, and so the tablet list may not reflect correctly files on the SD memory card. To resynchronize, select the
/{ROOT} directory on the tablet, or press and hold the BTConnect button to relink the Bluetooth from the App start
screen.
mMS+ Status LED: The LED on the mMS generally indicates power on (red) or power on and bluetooth linked
(blue). The LED blinks status information, on boot –blink 2, then 3, then 4 times, as it initializes. When linked to
the tablet, each soft-button press causes the LED to blink indicating active connection. Repeated pattern blinking
during boot means there is an SD memory card error: check the card and correct.
mMS+/MMS Midi Sequencer Configuration File
The mMS+/MMS can use a configuration file to set certain defaults. The configuration file filename is,
MegaMidiConfig.txt, and must be located in the {Root} directory only. If the configuration file is missing, then
defaults are automatically used.
The format of this file is very specific; each keyword must be followed by -> and then the variable, terminated
with a semicolon. Any text following a semicolon is ignored. If you are using the configuration file, but want some
features to use default settings, you can force the use of a default by beginning the assignment line with a semicolon.
Only edit the configuration file with a basic text editor that does not include formatting, such as Notepad.
The configuration can set the power-on default directory, such as “MAIN_DIR”. There are also audible status
cues available that the mMS+/MMS has a connected instrument play during change directoryand upload filenames,
SD memory card error, and midi file error. Each cue uses a single playable note on the instrument.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Sample Configuration File

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Configuration File Keywords
DefaultDirectory: When the mMS+/MMS powers-on, the default directory is normally {/Root}. This can be changed to any
directory. The format is, DefaultDirectory -> Some_Directory_Name.
ToneStatusBegin: When the mMS+/MMS powers-on or is directed to change directory, it can briefly play a single note, an
audible confirmation that the mMS+/MMS and midi instrument are both active. The format is, ToneStatusBegin - > nn:nnn,
where nn = midi track 1-16, and nnn = note 0-127. Example: on our test organ, 1:93 causes a single snare drum strike. Default
is 0:0 = disabled.
ToneStatusEnd: This complements and follows the ToneStatusBegin setting. When the action completes, such as change
directory, the ToneStatusEnd plays a single note, providing an audible confirmation of the activity end. The format is,
ToneStatusEnd - > nn:nnn (format same as above). Example: on our test organ, 1:94 causes a single cymbal strike. Default
is 0:0 = disabled.
ToneStatusFileError: if the mMS+/MMS detects an SD card error, or SD card directory or file read error, a repeating error note
is played to the instrument. The format is, ToneStatusFileError - > nn:nnn (format same as above). The default is 0:0 =
disabled.
ToneStatusMidiFileError: if the mMS+/MMS detects a problem with a midi file format, or the file is otherwise corrupted, a
repeating error note is played to the instrument. The format is, ToneStatusMidiFileError - > nn:nnn (format same as above).
The default is 0:0 = disabled.
BootAllNotesOff: on mMS+/MMS power-up, it will automatically turn all notes off on all active channels; notes 0 thru 127,
and channels 1 thru 16. The assignments are YES = default, or NO
NumberOfChannels: the user can restrict the number of channels that the mMS+/MMS will work with, anywhere 1 thru 16
inclusive. The default is 16. It is usually not necessary to set this
AllNotesOffMode: During a mid-play STOP command, any playing notes are silenced using any of 3 All Notes Off modes; 1
= normal manual mode, 2 = midi command 120 All Sounds Off, 3 = midi command 123 = All Notes Off. If either of 2 or 3
can be used, there is a slight efficiency gain silencing all notes. Some midi to parallel controllers might employ these built-in
midi commands. Default is 1 = manual
DeclencheNote: During an abnormal STOP mid-song play, it might be important for some instruments to reset the Declenche
or General Cancel feature on their instrument, though it is usually not required because songs should reset the declenche at
the beginning of each new song play. The choices are 0:0 = default disabled, or declenche note channel->note assignment,
format nn:nnn (format same as above). The declenche event plays at the very end of a STOP command, timed as - 100mS
delay, 1sec note on, then note off, effectively resetting the registers. We recommend not using this feature if it’s not necessary,
as it will delay the STOP time.
PlayDelay (mMS+ only): Set the autoplay in-between song delay (silence) in seconds, 0 - 60 allowed. Default = 4
NotesOffAllSongs: Ensure silence between all songs. Usually NOT necessary and NOT recommended. Can be YES or NO
(Default)
DisplayUserSettings (MMS only): Diagnostic Tool to display all user settings on the LCD during boot. Usually NOT necessary,
and will slow boot time. Can be YES or NO (Default)
DoubleOff: Adds timing delay to Notes Off all modes. Usually NOT necessary and NOT recommended. Can be YES or NO
(Default)
RenameBT: (special order feature, not available on all units) Units are shipped with Bluetooth already named MEGAMIDI or
MINIMIDI. With this option the end user can rename it, which is especially useful for multiple instrument use. The name
can be any combination of alphanumeric characters up to 30 characters in length. After renaming, on the tablet go to Bluetooth
settings, and "Forget" the current Bluetooth name. On the tablet, turn the Bluetooth off and on again, and then select Pair a
Bluetooth Device, or Search for a new Bluetooth device. After renaming the Bluetooth, it is strongly urged that the rename
keyword be disabled by beginning the line with a semicolon.

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Miscellaneous
Bluetooth
The standard Bluetooth RF range is at least 10M, or 30 feet. When changing directories or when first powering
on a lot of information needs to be sent from the mMS+/MMS hardware to the tablet. The tablet must be in range
and the signal communication strong for this to work reliably. So at an extreme range, or in an electrically noisy
environment, there may be some interference that would prevent the smooth communication between mMS+/MMS
and tablet. The user is encouraged to be within clear site range of the mMS+/MMS custom hardware when first
running the App or when changing directories.
When connecting the tablet to Bluetooth, MEGAMIDI or MINIMIDI+ should appear as one of the recognized
devices. If the tablet has in some way been reset or Bluetooth devices has somehow been lost, go to the wireless
configuration screen on the tablet, and search for new Bluetooth devices. With the MMS on, it should find device
MEGAMIDI, or MINIMIDI+ for the mMS+. Select this device and it will ask for a pass key –the key is located on
the serial tag of the mMS+/MMS.
MMS LCD Display Status Messages
The MMS display is configured 4 rows by 20 characters. At various times it displays current directory, current
selected song name, current song number, complete text status messages and acronym status messages. The
acronyms are described as follows;
SP: = Sequential Play –MMS is currently in Sequential Play mode
RP: = Random Play –MMS is currently in Random Play mode
P: = Playing –MMS is in Tablet Remote play mode
!NF = File notfound –The MMS cannot located the file - file is Not Found. This error message may be accompanied
by an error tone.
CD: = change directory The current directory being processed
!D: = open directory fail –The MMS cannot find or open the named directory. This error message may be
accompanied by an error tone.
DIR = Current Directory –The currently selected directory is displayed locally as well as on the tablet. For local
LCD display, the displayed directory occupies 1 line, and will be truncated >16 characters. Longer directory names
can be used but only the first 16 characters will be displayed.
Midi file filename –The currently playing or selected midi file is shown on the last 3 rows of the display. The
filename will be truncated at >57 characters. Longer filenames can be used but only the first 57 characters will be
displayed.
BPM –Beats per minute of the currently playing song (visible when using tablet BPM UP/DN keys)
Delay –Between song silence during autoplay (visible when not playing a song)
mMS+ System Status Messages
System status messages will either briefly appear on the selection bar, or in a disappearing balloon window.
Other
Maximum midi filename length = 88 characters (will ignore longer named files)
Maximum directory filename length = 88 characters (will ignore longer named directories)
Maximum number songs in any single directory = 1500 (will ignore files over 1500)
Midi type song = will only play midi type 0 songs
SD memory = SDHC, maximum 32G, speed class at least 4 (as tested)
A/C adapter = 9VDC/1A, center positive, 2.1 x 5.5mm barrel plug

Brotech Electronics Mini Midi Sequencer+ and Mega Midi Sequencer User Manual 2017-08-13
Satisfaction Guarantee:
We want the Mini/Mega Midi Sequencer product to work for you the way you need it to, understanding that
different applications may require different solutions. The customer has up to 30 days, to evaluate and try the
system, and if it doesn’t meet your requirements you can return it for credit. The items must be returned in like-new
condition. Contact us first for a return authorization (RMA). The customer pays for UPS tracked and insured
shipping. Under these conditions and upon receipt of the returned hardware, a full refund will be provided, less the
shipping charges. The tablet cannot be returned if it has been registered in an end user Amazon account. In that
instance, we will only refund the cost of the custom hardware.
Product Warranty:
The Brotech Electronics Mini/Mega Midi Sequencer custom hardware is guaranteed free from defects in material
and workmanship for a period of 1 year from date of purchase. In the unlikely event that you experience a problem,
contact us and we’ll try to find a resolution. If the product needs to be returned for repair, contact us first for a return
authorization (RMA).The customer pays for UPS tracked and insured shippingone way. Brotech does not warranty
the tablet. Any tablet warranty or operating problems must be resolved through the manufacturer directly.