McGrey BS-88 User manual

● Rear-Panel Controls
● Front Panel Contols
Speaker
Power Switch
Master Volume
Function
Demo
Metronome
Lesson
Split
Timbre
Percussion
Upper Volume
Metronome Volume
Metronome
Tempo
Demo Song
GM Timbre
Udisk Music Player
GM Timbre
Click
Record
Touch
Sustain
Vibrato
Transpose
Octave
Split Volume
Lower Volume
D. C 12V
PHONES-1
PHONES-2
AUDIO OUT
AUDIO IN
PEDAL
USB-MIDI
U ISKD
PEDAL AUDIO IN
USB-MIDI 12V
AUDIO OUT PHONES-2 PHONES-1
UDISK
Precautions
Please read it through carefully before proceeding.
● Dedicated power adapter shall be used, and in case of adaptor damage, replace it
immediately
● The keyboard can only be disassembled by professionals, and no change can be made to
the internal structure. In case of any functional abnormality during performance , stop
performing immediately and send the keyboard to professionals for maintenance.
● When connecting the keyboard to other device, ensure both the keyboard and the device to
be connected are powered off before connection.
● Do not turn and keep the volume to the maximum or to an uncomfortable degree for a long
time when performing
● Keep the keyboard away from heat source to protect its parts from damage.
● Prevent liquid, dust, small particle and other foreign matters from entering the case of the
keyboard, for which may result in element short circuit.
● Pull out the plug before cleaning the keyboard, and do not pull out the plug with wet hand.
● Please use dry and soft cloth to clean the keyboard. Paint, alcohol or other chemical solvents
shall not be used for cleaning, for which may damage the keyboard surface.
● Please pull out the plug after performing or when the keyboard is left unused for a long time.
NOTICE
I.Panel Control And Extension Ports

II. Preparation
● AC/DC power adapter
● Use of headphones
● Connection with amplifier or audio device
● Audio input port
● Pedal port
The Piano is configured with a 3-in-1 pedal port which can be used for the connection of a single pedal (sustain pedal) or
three pedals (soft pedal, sustain pedal and damper pedal) to simulate various sound effects during the piano performance.
Connect the pedal connector to the PEDAL port on the rear panel of the Piano, and carry out required operations with the
pedal.
Note: the panel is an operational item. Different configurations are provided with different pedals.
● USB-MIDI (APP) port
Connecting method:
A dedicated OTG data cable of the Piano should be used for the connection between the Piano and a mobile phone or a
tablet PC. Please scan the QR code on the back cover for detailed procedures.
● Play U disk music
The Piano is configured with an in-built U disk music player with 32G memory, which can be used to play music of MP3
format.
Insert a U disk into the UDISK port on the rear panel, press the [FUNCTION+] + UDISK MUSIC PLAYER [ON/OFF]
buttons to play MP3 music.
.
power interface on the rear panel of the Piano, and the other end to the power socket. (Please note that the input voltage of
the adapter should be in line with the utility power voltage)
Two professional 6.5 mm dual-track headphones ports are provided on the Piano. When connecting a headphone to the
PHONES-1 or PHONES-2 port on the rear panel of the Piano, the loudspeaker will be disenabled automatically. In this way,
you can carry out personal practice or four hands playing without disturbing others.
※Caution! When using headphone, do not keep high volume for a long time, or else hearing damage may be caused.
The Piano is configured with an in-built loudspeaker. You may connect the Piano to other external audio devices. Firstly,
turn off the Piano and the external audio device, secondly, connect one end of the audio cable to the AUDIO OUT (audio
output) port on the rear panel of the Piano, and finally connect the other end to the audio input port of the audio device.
The Piano is equipped with a stereo input function. Sound signals from mobile phone, MP3 player, computer and other
audio devices can be input into the Piano for playing. Firstly, turn off the Piano, secondly, connect one end of the audio
cable to the output port of an audio device, and the other end to the AUDIO IN port on the rear panel of the Piano, finally,
turn on the Piano.
The USB-MIDI (APP) port of the Piano is used for the connection with a mobile phone or a tablet PC. Download and
install APP teaching software to realize the connection of the Piano with smart devices, facilitating teaching and learning.
The USB-MIDI (APP) port of the Piano can also be used for the connection with other musical Instruments and computer
with MIDI. You can output performance records to a computer for advanced recording, composing and editing with
computer software, or input the MIDI music stored in the computer to the Piano for playing.
Press the [FUNCTION+] + UDISK MUSIC PLAYER [ ] buttons to play or pause a track.
Press the [FUNCTION+] + UDISK MUSIC PLAYER [ ] buttons to adjust the volume
Press the [FUNCTION+] + [ ] or [ ] buttons to go to the previous or next track.
Press the [FUNCTION+] + [ ] buttons to cycle through the repeat modes for continuous, random, or single
playback.
Press the [FUNCTION+] + UDISK MUSIC PLAYER [ON/OFF] buttons again to deactivate the MP3 music playing
function.
Dedicated AC/DC power adapter for the Piano should be used. Connect the output end of the power adapter to the
III. Basic Performance Method
Press the [POWER] button, the [PIANO] button light will light on, and then you may operate the Piano as required.
● Master volume adjustment
Turn the [MASTER VOLUME] knob clockwise to increase master volume, and anti-clockwise to decrease master
volume. The master volume controls all volumes simultaneously.
● Key tone
The click function is defaulted to be enabled, press the [FUNCTION+] button + function compound key on the keyboard,
a prompt tone “click” will be heard. Press the [FUNCTION+] button + the [Click] key to enable or disable the key tone
function.
● Timbre selection
The Piano provides 140 timbres, from “000” to “139”, for your selection. When the Piano is turned on, the [PIANO]
button light lights on.
Default timber: the Piano provides 8 default timbers for your selection, among which, the default timber of [GM TIMBRE]
is “088 Pad 1 (New Age)”.
Select other timbers: press the [GM TIMBRE] button + [DEMO SONG/GM TIMBER] keys to select standard GM timber
and Chinese folk timber from “000” to “139”.
● Play demo songs
Press the [DEMO] button to play the demo songs, and press the [DEMO] button again to stop playing.
The Piano provides 16 demo songs, from “00” to “15”, for your selection. Press the [FUNCTION+] button + [DEMO
0 1 2 3 4 5 6 7 8 9
Enter a 3-digit code or press the “-/+” button for selection.

SONG/GM TIMBER] keys to select the corresponding demo song.
During the demo song playing process, you can select other timbres for playing the demo song. (Note: percussion and
dual timber is not applicable)
IV. Metronome
● Metronome
Press the [METRONOME] button to activate the metronome. Press the [METRONOME] button again to deactivate the
metronome.
The Piano contains 10 tempos. Press the [FUNCTION+] button + the [METRONOME] 1/4~12/8 keys for metronome
setting.
● Tempo
The tempo is defaulted to be 120, which is adjustable between the range of “30” to “300”. Press the [FUNCTION+]
button + [Tempo] number + “-/+” keys to select the required tempo.
Press the [FUNCTION+] button + the [TAP] key of the [TEMPO] to restore the default value.
● Metronome volume
The Piano contains 5 metronome volumes. Press the [FUNCTION+] button + the [METRONOME VOLUME] 1 - 5 keys for
0 1 2 3 4 5 6 7 8 9
Enter a 2-digit code or press the “-/+” button for selection.
1/4 2/4 3/4 4/4 6/4 3/8 6/8 7/8 9/8 12/8
Enter the tempo (30-300) or press the “-/+” button for selection,
and press the “TAP” key to restore the default value
0 1 2 3 4 5 6 7 8 9
metronome volume setting.
V. Effect Change
● Timbre change
♦ Sustain: prolong the lasting time of a pitch.
Press the [FUNCTION+] button + the [SUSTAIN - ON] key to enable the sustain effect.
Press the [FUNCTION+] button + the [SUSTAIN - OFF] key to disable the sustain effect.
♦ Vibrato: add a pulsating change to the pitch
Press the [FUNCTION+] button + the [VIBRATO - ON] key to enable the vibrato effect.
Press the [FUNCTION+] button + the [VIBRATO - OFF] key to disable the vibrato effect.
♦ Soft pedal: decrease the pitch volume
Press and hold the [soft pedal] to enable the soft effect, and release the pedal to disable such effect.
(Note: this function is only supported by the configuration with the optional items - three pedals)
♦ Sustain pedal: prolong the lasting time of a pitch.
Press and hold the [sustain pedal] to enable the sustain effect, and release the pedal to disable such effect.
(Note: this function is supported by both configurations with a single pedal or three pedals.)
♦ Damper pedal: prolong the lasting time of the pressed key.
Press and hold the [sustain pedal] to enable the damper effect, and release the pedal to disable such effect.
(Note: this function is only supported by the configuration with the optional items - three pedals)
1 2 3 4 5

● Dual timbre
Press any two timbre buttons simultaneously to enable the dual timbre function, in this case, the two selected timbre will
be overlaid.
When overlay of other timbres are required, press the [GM TIMBRE] button + the [DEMO SONG/GM TIMBRE] key to
select other timbres, and then press the [GM TIMBRE] and other [TIMBRE] buttons simultaneously.
Both volumes for the upper layer and the lower layer have 5 grades: the volume of the first selected timbre is adjusted
via the upper volume by pressing the [FUNCTION+] button + the [UPPER VOLUME 1 - 5] keys on the keyboard; the volume
of the later selected timbre is adjusted via the upper volume by pressing the [FUNCTION+] button + the [LOWER VOLUME
1 - 5] keys;
VI. Lesson Mode
● Lesson Mode
In the lesson mode, the 88 keys are split into two zones with identical tone and timbre, which facilitates the
demonstration by teacher-level students, and two persons can play the piano simultaneously.
Press the [LESSON] button for the first time to activate the lesson mode, press the [LESSON] button again to disable this
function.
Under the lesson mode, the scales of Keys A0 - C5 in the left zone will change to the scales of Keys A2 - C6, while the
scales of Keys C4# - C8 in the right zone will change to the scales of Keys C2# - C6.
Grand
piano Church
organ Guitar Bass String Percussion
Electrical
piano GM
TIMBER+
1 2 3 4 51 2 3 4 5
C1 C2 C3 C4 C5 C6 C7 C8
(Before lesson mode enabled)
Left zone Right zone
C3 C4 C5 C6 C3 C4 C5 C6
(After lesson mode enabled)
● TRANSPOSE
The transpose control function of the Piano is adjustable from “-6” to “+6”, and the default setting is 0. Press the
[FUNCTION+] button + the [TRANSPOSE -/+] keys for transposing within ±6.
The transpose function saves the trouble of raising and lowering the key when playing on the keyboard. You can play
songs in every key in the same way as that for playing songs in key C. It may decrease the key by half-step (minor second),
thus the keys positions for key C is changed to those for key B; press the “+” button to increase all keys by half-step (minor
second), in this case, the tone of the key position of key C is changed to key C# or key Db. If the button is pressed for twice,
key C will decrease to Bb; and if the button is pressed for fifth times, key C will decrease to key F. Press the “+” and “-”
buttons simultaneously to reset key C.
● Touch control
Press the [FUNCTION+] button + [TOUCH] OFF, 1-3 keys to turn off or shift touch force among 3 grades.
● Split
The keyboard can be split into two zones, in this way, you can play two different timbres with your left and right hands
respectively. You should set the timbre for the right hand side after the timbre that you were using before splitting is applied
to the left-hand side. For example, you can set the timbre of the left-hand side to bass and the right-hand side to piano.
♦ Press the [SPLIT+] button to split the keyboard, and press the [SPLIT+] button again to disable the keyboard split.
Press the [SPLIT+] button for the first time and press the key simultaneously to set the split point. The currently pressed
key will be the first key of the right-hand side.
♦ When the keyboard split function is enabled, the scale of the left-hand zone will increase by an octave, and the scale
of the right-hand zone will decrease by an octave. Take the default split point as an example, scales of Keys A0 - G2# will
change to those of Keys A1 - G3#, while scales of Keys A2 - C8 will change to those of Keys A1 - C7.
♦ Press the [FUNCTION+] button and [SPLIT] 1 - 5 keys to set the volume for the left-hand zone.
♦ After the keyboard split function is enabled, you can reselect a timbre for the right-hand zone.
1 2 3
1 2 3 4 5
(Split point setting)
After keyboard split, all keys on the left of the
currently pressed key constitute the left-hand zone,
with scale increasing by an octave.
The currently pressed key and all keys on its right
constitute the right-hand zone, with scale decreasing by
an octave

000 Acoustic Grand Piano
001 Bright Acoustic Piano
002 Electric Grand Piano
003 Honky-tonk Piano
004 Rhodes Piano
005 Chorused Piano
006 Harpsichord
007 Clavichord
008 Celesta
009 Glockenspiel
010 Music Box
011 Vibraphone
012 Marimba
013 Xylophone
014 Tubular Bell
015 Dulcimer
016 Drawbar Organ
017 Percussive Organ
018 Rock Organ
019 Church Organ
020 Reed Organ
021 Accordion
022 Harmonica
023 Tango Accordion
024 Acoustic Guitar (nylon)
025 Acoustic Guitar (steel)
026 Electric Guitar (jazz)
027 Electric Guitar (clean)
028 Electric Guitar (muted)
029 Overdriven Guitar
030 Distortion Guitar
031 Guitar Harmonics
032 Acoustic Bass
033 Electric Bass (finger)
034 Electric Bass (pick)
035 Fretless Bass
036 Slap Bass 1
037 Slap Bass 2
038 Synth Bass 1
039 Synth Bass 2
040 Violin
041 Viola
042 Cello
043 Contrabass
044 Tremolo Strings
045 Pizzicato Strings
046 Orchestral Harp
047 Timpani
048 String Ensemble 1
049 String Ensemble 2
050 Synth Strings 1
051 Synth Strings 2
052 Choir Aahs
053 Voice Oohs
054 Synth Voice
055 Orchestra Hit
056 Trumpet
057 Trombone
058 Tuba
059 Muted Trumpet
060 French Horn
061 Brass Section
062 Synth Brass 1
063 Synth Brass 2
064 Soprano Sax
065 Alto Sax
066 Tenor Sax
067 Baritone Sax
068 Oboe
069 English Horn
070 Bassoon
071 Clarinet
072 Piccolo
073 Flute
074 Recorder
075 Pan Flute
076 Bottle Blow
077 Shakuhachi
078 Whistle
079 Ocarina
080 Lead 1 (square)
081 Lead 2 (sawtooth)
082 Lead 3 (calliope lead)
083 Lead 4 (chiff lead)
084 Lead 5 (charang)
085 Lead 6 (voice)
086 Lead 7 (fifths)
087 Lead 8 (bass+lead)
088 Pad 1 (new age)
089 Pad 2 (warm)
090 Pad 3 (polysynth)
091 Pad 4 (choir)
092 Pad 5 (bowed)
093 Pad 6 (metallic)
094 Pad 7 (halo)
095 Pad 8 (sweep)
096 FX 1 (rain)
097 FX 2 (soundtrack)
098 FX 3 (crystal)
099 FX 4 (atmosphere)
100 FX 5 (brightness)
101 FX 6 (goblins)
102 FX 7 (echoes)
103 FX 8 (sci-fi)
104 Sitar
105 Banjo
106 Shamisen
107 Koto
108 Kalimba
109 Bagpipe
110 Fiddle
111 Shanai
112 Tinkle Bell
113 Agogo
114 Steel Drums
115 Woodblock
116 Taiko Drum
117 Melodic Tom
118 Synth Drum
119 Reverse Cymbal
120 Guitar Fret Noise
121 Breath Noise
122 Seashore
123 Bird Tweet
124 Telephone Ring
125 Helicopter
126 Applause
127 Gunshot
128 Yong Gin
129 Zheng
130 Zhong Ruan
131 Pi Pa
132 Big Souna
133 Souna
134 Er Hu
135 Yue Hu
136 Di Zi
137 Bong Di
138 Koto
139 Qu Di
● Octave control
Under the lesson mode, you can perform octave adjustment from “-2” to “+2”, and the default setting is 0. Press the
[FUNCTION+] button + the [OCTAVE] “-” / “+” keys for octave adjustment within ±2. For example, when adjusting octave to
“-2”, the left zone will change to A0-C4 while the right zone will change to C0#-C4.
Press the [FUNCTION+] button + [OCTAVE] “-” / “+” keys simultaneously to restore the default setting.
Note: octave control can only be enabled under the lesson mode.
VII. Record Mode
● Record
Press the [FUNCTION+] button + the [REC] key to enable the record mode. Press the [FUNCTION+] button + the [REC]
key again to disable the record mode.
Under the record mode, the metronome will be enabled automatically, and you can press any key to start recording.
Press the [FUNCTION+] button + the [TEMPO] key to adjust the tempo.
The Piano can record 700 notes at maximum. When the storage memory is full, the record mode will be disabled and the
metronome will shut down automatically.
● Play
Press the [FUNCTION+] button + the [PLAY] key to play the records. During the playing process, press the
[FUNCTION+] button + the [PLAY] key again to stop playing.
REC
RECORD
PLAY
Appendix Timbre Table