Roland JU-06A Boutique Series Juno Sound Module User Manual
- June 7, 2024
- Roland
Table of Contents
JU-06A Boutique Series Juno Sound Module
JU-06A SOUND MODULE
Owner’s Manual
English © 2019 Roland Corporation
Before using this unit, carefully read “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (the leaflet “USING THE UNIT SAFELY”). After reading, keep the document(s) where it will be available for immediate reference.
Introduction
The JU-06A is a sound module that can be used in conjunction with the K-25m
keyboard unit (sold separately). The sound can be heard through the built-in
speakers. The JU-06A can operate on batteries or on USB bus power. If you
are using batteries, insert four AA
batteries, making sure that the batteries are oriented correctly. When
turning the unit over, be careful so as to protect the buttons and knobs from
damage. Also,
handle the unit carefully; do not drop it. * When the batteries run low, the
display indicates “bLo.” Please install fresh batteries.
Using the JU-06A with the K-25m keyboard unit (sold separately)
& For installation, refer to the K-25m’s Owner’s Manual.
Playing the JU-06A via MIDI or USB You can also play the JU-06A via MIDI or
USB. For details, refer to “Rear Panel (Connecting Your Equipment).”
Panel Descriptions
Top Panel
1
2
3
4
5
6
7
8
9
10
1 KEYBOARD Controller
[HOLD] button [CHORD] button [NOTE] button
Explanation
If you press this button to make it light, the sound of the key you played
most recently continues to be heard even after you release your hand. If you
play a different key while hold is applied, the sound also changes. Turns
chord memory on. If you press this button to make it light, the step buttons
can be used as a keyboard. For details, refer to “Using the Buttons as a
Keyboard (NOTE)”.
2 ARPEGGIO Controller [ON/OFF] button [MODE] switch [RANGE] switch
[RATE] knob
Explanation
Turns the arpeggio on/off. Selects the arpeggio mode. UP (upward), U&D (upward
and downward), DOWN (downward) Selects the range in which the arpeggio plays.
13 octaves Specifies the note length for each step of the arpeggio. 4
(quarter note), 4t (quarter note triplet), 8 (8th note), 8t (8th note
triplet), 16 (16th note), 16t (16th note triplet), 32 (32nd note), 32t (32nd
note triplet), 64 (64th note), 64t (64th note triplet)
3 LFO
Here you can create cyclic change (modulation) in the sound.
Controller
Explanation
[RATE] slider [DELAY TIME] slider
Specifies the LFO’s modulation speed. Specifies the time from when the tone sounds until the LFO reaches its maximum amplitude.
4 DCO
Here you can select the waveform that determines the character of the sound, and specify its pitch.
Controller RANGE [16] [8] [4] `buttons [LFO] slider
Explanation Specifies the octave of the oscillator. Allows the LFO to modulate the pitch, producing a vibrato effect.
Controller
[PWM] slider
[LFO/MAN/ENV] switch [ ] button [ ] button [SUB] button [SUB] slider [NOISE]
slider
Explanation When the [LFO/MAN/ENV] switch is “MAN” (MANUAL)
Adjusts the value of the pulse width.
When the [LFO/MAN/ENV] switch is “LFO” Adjusts the depth of modulation
produced by the LFO.
When the [LFO/MAN/ENV] switch is “ENV” Adjusts the depth of modulation
produced by the ENV.
What is “Pulse Width”?
Pulse width is the amount of the upper portion of the pulse wave, expressed as
a percentage of the overall wavelength. If the upper and lower widths are not
the same, the waveform is called an asymmetric pulse wave. Selects whether the
pulse width value is the fixed value specified by the [PWM] slider (MAN), is
modulated by the 3 LFO (LFO), or is modulated by the 8 ENV (envelope). Selects
the waveform that is the basis of the sound.
(Square wave/Asymmetrical pulse wave), (Sawtooth wave) Turns the sub-
oscillator on/off. Adjusts the volume of the sub oscillator. Adjusts the
volume of the noise.
5 HPF
This is a high-pass filter that passes the high frequencies and cuts the low frequencies.
Controller
Explanation
[FREQ] slider
Specifies the cutoff frequency of the high-pass filter. Frequency components below the cutoff frequency are cut.
6 VCF
This is a low-pass filter that passes the low frequencies and cuts the high frequencies.
Controller
Explanation
[FREQ] slider [RES] slider [ ] switch
Specifies the cutoff frequency of the low-pass filter. Frequency components
above the cutoff frequency are cut, making the sound mellower. Resonance
boosts the sound in the region of the filter’s cutoff frequency. Higher
settings produce stronger emphasis, creating a distinctively “synthesizerlike”
sound.
Selects the polarity (direction) of the envelope.
[ENV] slider
Adjusts the depth by which the 8 ENV (envelope) controls the cutoff frequency.
[LFO] slider [KYBD] slider
Uses the 3 LFO to vary the cutoff frequency.
Adjusts the way in which the pitch of the note affects the cutoff frequency
(key follow) when using the keyboard to control cutoff frequency. Moving the
slider downward causes the cutoff frequency to fall as you play higher on the
keyboard.
7 VCA Here you can adjust the amount of time-varying change (envelope) for the volume.
Controller
Explanation
[ ] switch [LEVEL] slider
Selects whether the volume is controlled by 8 ENV (envelope) ( gate signal (
).
Adjusts the volume of the patch.
) or by the
8 ENV
Here you can create time-varying change (envelope).
Controller
Explanation
[A] slider
Attack time
[D] slider
Decay time
[S] slider
Sustain level
[R] slider
Release time
9 SEQUENCER
Controller [START] button [EDIT] button [NOTE/GATE] switch [VALUE] knob
Explanation Makes the sequencer play (lit) or stop (unlit). Lets you edit the step sequencer. Switches the target of editing (note number or gate time). Use this to edit values.
10 Common section
Here you can switch the sound (patch/bank).
Controller
Explanation
Display
Shows the bank number and patch number. During patch editing, a decimal point ” . ” is shown at the right of the patch number. If the SEQUENCER [EDIT] button is lit, this shows the tempo or the sequencer value that you’re editing.
Controller
BANK [1 (5)][4 (8)] buttons PATCH [1][8] buttons
Explanation
What is “Patch/Bank”?
Here you can save or recall 64 sounds taken from the JUNO-60 (8 patches × 8
banks) and another 64 sounds taken from the JUNO-106.
To switch the bank/patch
1. Press the BANK [1 (5)][4 (8)] buttons to switch the bank. Each time you
press the same bank button, you alternate between banks 14 and 58. To select
banks 58, you can also hold down the bank (58) that you want to select and
then press another bank button to select it.
2. Press the PATCH NUMBER [1][8] buttons to switch the patch.
To store the patch * When you edit a patch, a dot appears in the display.
1-1.
[CHORUS ] button [CHORUS ] button [DELAY] button [MANUAL] button [60/106]
switch
EXT CLK IN jack
1. Press the save-destination BANK [1 (5)][4 (8)] button. Each time you
press the same bank button, you alternate between banks 14 and 58. To select
banks 58, you can also hold down the bank (58) that you want to select and
then press another bank button to select it.
2. Long-press the save-destination PATCH NUMBER [1][8] button.
Turns the chorus effect- / On/Off.
Turns the delay effect On/Off. Causes sound to be produced according to the
current settings of the sliders. Switches between JUNO-60 sounds and JUNO-106
sounds. Inputs a clock signal from an external device. You can make the
sequencer’s steps advance in synchronization with the clock (pulse) that is
input.
Rear Panel (Connecting Your Equipment)
- To prevent malfunction and equipment failure, always turn down the volume, and turn off all the units before making any connections.
AB C D E
F
G
A Micro USB (O) port
Use a commercially available USB 2.0 cable (A-micro B) to connect this port to
your computer. It can be used to transfer USB MIDI and USB audio data. You
must install the USB driver when connecting the JU-06A to your computer.
Download the USB driver from the Roland website. For details, refer to
Readme.htm which is included in the download. &
https://www.roland.com/support/
B [VOLUME] knob Adjusts the tone.
C PHONES jack Connect headphones (sold separately) here.
D OUTPUT jack Connect this jack to your amp or monitor speakers.
E MIX IN jack
This is the audio input jack. Sound from the connected device is output from
the OUTPUT jack and PHONES jack.
MIDI OUT
MIDI IN
F MIDI port
You can play the JU-06A by connecting a MIDI device via a commercially
available MIDI cable.
MIDI keyboard
JU-06A
G [POWER] switch This turns the power on/off.
Turning the JU-06A On
- Before turning the unit on/off, always be sure to turn the volume down. Even with the volume turned down, you might hear some sound when switching the unit on/off. However, this is normal and does not indicate a malfunction.
- When handling the sound module while adjusting its angle or during installation, please be careful not to get your fingers pinched between the movable part and the unit. In places where small children are present, make sure that an adult provides supervision and guidance.
- Do not use a micro USB cable that is designed only for charging a device. Charge-only cables cannot transmit data.
Using the Buttons as a Keyboard (NOTE)
You can perform by using step buttons [1][16] as a one-octave keyboard.
1. Press the KEYBOARD [NOTE] button to make it light. Step buttons [1][12]
are lit.
2. Perform by pressing step buttons [1][12]. You can use step buttons [13]
and [14] to shift the keyboard’s pitch range in one-octave units. You can use
step buttons [15] and [16] to switch between solo/unison/poly modes.
Mode SOLO UNISON POLY
Explanation Plays monophonically. Plays all sounds in unison. Plays polyphonically.
Using the Arpeggiator
1. Press the ARPEGGIO [ON/OFF] button to make it light. 2. Use the [MODE]
switch to select the arpeggio mode.
UP (upward), U&D (upward & downward), DOWN (downward) 3. Use the [RANGE]
switch to specify the range (13 octaves) in which the arpeggio plays 4. Use
the [RATE] knob to specify the length of the notes. 5. Hold down multiple keys
simultaneously.
You can perform while using this function together with chord memory and the
[HOLD] button. You can also use the step buttons to play the keyboard. For
details, refer to “Using the Buttons as a Keyboard (NOTE)”.
Chord Memory
Here’s how to play chords that are assigned to step buttons [1][16]. 1. Press
the [CHORD] button to make it light. 2. Play a key.
You can use the [HOLD] button to make the sound continue. You can also use the
step buttons as a keyboard. For details, refer to “Using the Buttons as a
Keyboard (NOTE)”.
Selecting a Chord Memory
1. Press the [NOTE] button to make it go dark. 2. Hold down the [CHORD]
button and press a step button 116. * You can also make a
selection by holding down the [CHORD] button and turning the [VALUE] knob.
Editing a Chord Memory
1. Select the chord memory (c1c16) that you want to edit. 2. Press the
[NOTE] button to make it light. 3. Hold down the [CHORD] button and press the
[1][14] buttons as desired.
Use these buttons to edit the settings of the selected chord memory.
Button [1][12] [13], [14]
Explanation Specify the notes of the chord (CB) Change the octave
You can also edit the chord memory by holding down the [CHORD] button and pressing keys on the K-25m.
Using Step Sequencer Mode
What is a step sequencer? The step sequencer lets you input a note at each of
up to 16 steps, and play back the notes as a loop. change the number of steps
between 1 and 16. Up to 16 patterns can be stored. Step button [1][16] In
step sequencer mode, the [1][16] buttons are called “step buttons.”
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Selecting/Playing Patterns
1. Hold down the [START] button and press a [1][16] button to select a
pattern. The display shows the pattern number.
- You can also select a pattern by holding down the [START] button and turning the [VALUE] knob. 2. Press the [START] button to play the pattern.
Each time you press the button, the pattern plays or stops. You can also select the next pattern while a pattern is playing. When the current pattern finishes playing, the next pattern starts playing.
Changing the Tempo
1. Press the SEQUENCER [EDIT] button to make it light. The display indicates
the tempo.
2. Use the [VALUE] knob to change the tempo.
Turning Steps On/Off
Here’s how to specify whether each step will play. 1. Press the SEQUENCER
[EDIT] button to make it light. 2. Press the step [1][16] buttons that you
want to turn on/off.
Lit (on): The note that is entered for the step will play. Unlit (off): The
note that is entered for the step will not play. You can choose whether
turning a step off makes that step a rest or causes playback to skip that step
and proceed to the next step (refer to “Sequencer Settings”).
Entering a Pattern with Automatically Advancing Steps (Step Entry Mode)
1. Hold down the SEQUENCER [EDIT] button and press the [START] button. Step
button [1] blinks, the display indicates “S 1,” and the unit is in step entry
mode.
2. Press the KEYBOARD [NOTE] button to make it light. 3. Use step buttons
[1][12] to enter the pitch.
The gate time value will be 50. 4. The step advances automatically each time
you play a note.
When you have entered 16 steps, entry mode ends. If using the K-25m
Enter notes using the keyboard of the K-25m instead of steps 23.
Entering/Editing Notes (NOTE)
1. Press the SEQUENCER [EDIT] button to make it light. 2. Set the [NOTE/GATE]
switch to the “NOTE” position. 3. Hold down the step button for which you want
to enter a note, and use the [VALUE] knob to
select the note number. The display shows the note number. · You can also
select a note number by holding down a step number and playing a note on the
keyboard of the K-25m. · By holding down multiple step buttons and turning the
[VALUE] knob, you can enter the same note number for all of the buttons that
you’re holding down. · A lit step button indicates note-on, and an unlit step
button indicates note-off.
Entering/Editing the Gate Time (GATE)
1. Press the SEQUENCER [EIDT] button to make it light. 2. Set the [NOTE/GATE]
switch to the “GATE” position. 3. While holding down the step button at which
you want to enter a gate, use the [VALUE] knob to
select the gate time. The display indicates the value. · By holding down
multiple step buttons and turning the [VALUE] knob, you can enter the same
gate time for all of the buttons that you’re holding down.
Entering a Tie
1. Press the SEQUENCER [EIDT] button to make it light. 2. Hold down the step
button for which you want to enter a tie, and press the SEQUENCER [EDIT]
button. You can enter a tie for the following step as well by pressing the
SEQUENCER [EDIT] button again. If you turn a step button off, that step’s tie
is deleted.
Saving
If you modified the settings, the modified settings are lost if you turn off
the power or select another patch, chord memory, or pattern. If you want to
keep the changes that you made, perform the Write operation. * KEYBOARD and
ARPEGGIO settings are not saved.
Saving a Patch
- If you modify the patch settings, a decimal point appears in the display.
1-1.
1. Press the save-destination BANK [1 (5)][4 (8)] button. Each time you press the same bank button, you alternate between banks 14 and 58. To select banks 58, you can also hold down the bank (58) that you want to select and press a different bank button.
2. Long-press the save-destination PATCH NUMBER [1][8] button. When the data is saved, the indicator blinks. - KEYBOARD and ARPEGGIO settings are not saved in the patch.
Saving a Chord Memory - If you modify the chord memory settings, a decimal point appears in the display.
c 1.
1. Press the [NOTE] button to make it go dark. 2. Hold down the [CHORD] button and long-press a step button [1][16].
When the data is saved, the indicator blinks.
Saving a Pattern - If you modify the pattern settings, a decimal point appears in the display.
P 1.
1. Hold down the SEQUENCER [START] button and long-press a step button [1][16]. When the data is saved, the indicator blinks.
Editing
Numeric buttons [1][16] In edit mode, the 16 numeric buttons shown in the
illustration are called buttons [1][16].
Button Parameter [6] Scale
Value/Explanation
Specifies the note length (scale) of each step. 2t (half-note triplet), 4
(quarter note), 4t (quarter note triplet), 8 (8th note), 8t (8th note
triplet), 16 (16th note), 16t (16th note triplet), 32 (32nd note)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Patch Parameters
1. Press the SEQUENCER [EDIT] button to make it go dark. 2. Hold down the
[MANUAL (16)] button and select a parameter by pressing one of the numeric
buttons shown in the following table. 3. Use the [VALUE] knob to edit the
value. 4. Press the [MANUAL (16)] button once again to exit patch parameter
editing.
Button Parameter
[1]
Portamento Switch
[2]
Portamento Time
[3] Bend Range [4] Tempo Sync [5]
LFO waveform
[6]
LFO Key Trigger
Value/Explanation
Smoothly changes the pitch from the first-played note to the next-played note.
OFF, On Adjusts the time over which the portamento pitch change occurs. 0255
Specifies the pitch bend range in semitone units. OFF, 124 Synchronizes the
LFO’s RATE or the DELAY’s TIME to the tempo. OFF, On Switches the LFO
waveform. Tri (Triangle wave), Sqr (Square wave), SA1 (Sawtooth wave1), SA2
(Sawtooth wave2), Sin (Sine wave), rd1 (Random wave1), rd2 (Random wave2)
Specifies whether the LFO cycle is aligned with the timing at which you play
the key (on) or is not aligned (off ). OFF, On
- Saved as a patch setting.
Delay Parameters
1. Press the SEQUENCER [EDIT] button to make it go dark. 2. Hold down the
[DELAY (15)] button and select a parameter by pressing one of the numeric
buttons shown in the following table. 3. Use the [VALUE] knob to edit the
value. 4. Press the [DELAY (15)] button once again to exit delay parameter
editing.
Button Parameter [1] Delay Level
[2] Delay Time [3]
Delay Feedback
Value/Explanation
Adjusts the volume of the delay sound. 015 Adjusts the time by which the
sound is delayed. 015 Adjusts the amount of feedback (delay repeats). 015
- Saved as a patch setting.
Sequencer Settings
1. Hold down the SEQUENCER [EDIT] button and select a parameter by pressing
one of the numeric buttons shown in the following table.
2. Use the [VALUE] knob to edit the value. 3. Press the SEQUENCER [EDIT]
button once again to exit sequencer settings editing.
Button Parameter Value/Explanation
[1] Shuffle
Adjusts the timing of the notes for even-numbered steps. -5050
Specifies how the step sequencer plays.
nOr (Normal):
Play forward from the first step.
EOr (Even/Odd reverse):
Exchange even-numbered steps with odd-
numbered steps during playback.
Odd (Odd only):
Play odd-numbered steps consecutively from the
beginning.
EVn (Even only):
Play even-numbered steps consecutively from the
[2]
Step Order Type
beginning. O-E (Odd only 0 Even only): Play odd-numbered steps consecutively from the
beginning, and after reaching the last step play
even-numbered steps consecutively from the
beginning.
E-O (Even only 0 Odd only): Play even-numbered steps consecutively from
the beginning, and after reaching the last step
play odd-numbered steps consecutively from the
beginning.
rnd (Random):
Play steps randomly.
Specifies how steps that are turned off will play.
[3]
Off Step Mode rSt (Rest):
Play a rest.
SKP (Skip):
Advance to the next step without playing.
[5] Last Step
Specifies the length of steps that are played. L1 (1step) L16 (16step)
- Shuffle, Step Order Type, and Off Step Mode settings return to their default values when the power is turned off.
- Last Step and Scale settings are saved as pattern settings.
System Settings
1. Hold down the ARPEGGIO [ON/OFF] button and select a parameter by pressing
one of the numeric buttons shown in the following table.
2. Use the [VALUE] knob to select the value. 3. Press the ARPEGGIO [ON/OFF]
button once again to confirm the value and exit system settings.
Button Parameter Value
Explanation
[1]
Master Tune
433448 Hz
Specifies the master tuning. Default: 440 Hz
[2] MIDI Channel 116
Specifies the MIDI transmit/receive channel (116).
At (AUTO)
If MIDI clock is being input to the MIDI IN connector or the USB port, the JU- 06A’s tempo will automatically synchronize to MIDI clock (default).
Int
The JU-06A operates at the tempo specified on the unit
[3]
MIDI Clock Source
(INTERNAL)
itself. Choose the “INTERNAL” setting if you don’t want to synchronize to an external device.
MId (MIDI)
Always synchronize to the MIDI clock received from the MIDI IN connector.
USb (USB)
Always synchronize to the MIDI clock received from the USB port.
[4]
Transpose *1
-6+5
Transposes the keyboard range in semitones.
Specifies how the sound engine responds to velocity data (the force with which you play a note).
[5]
Key Velocity *1
- This setting also applies to the MIDI output when you play the K-25m.
tch (TOUCH) The sound engine responds to velocity data.
64
Regardless of the velocity, the sound engine always operates
127
with a fixed value (64 or 127).
Sets the keyboard’s touch.
Velocity [6] Curve
*1
LHt (Light) MEd (Medium)
Sets the keyboard to a light touch. This is the standard keyboard touch setting.
HVY (Heavy) Sets the keyboard to a heavy touch.
OFF (OFF) The power does not turn off automatically.
[7] Auto Off
The power turns offautomatically after 30 minutes (default 30 (30 min) value).
Auto Off does not occur while USB-connected.
Off (OFF)
1 (1 min) [8] LED DEMO
3 (3 min)
Specifies the time until the LED DEMO is shown. Default: 3 min
10 (10 min)
Although the JU-06A is four-note polyphonic,
MIDI OUT
you can increase the polyphony by using a MIDI
cable to connect two or more JU-06A units and
[9]
Chain Mode turning Chain mode on.
MIDI IN
OFF (OFF) On (ON)
If Chain mode is on, the fifth voice and subsequent notes are passed “thru” via MIDI OUT.
OFF (NOISE
OFF)
Specifies the amount of noise when chorus is on.
[10] Chorus Noise HLF (HALF) OrG (ORIGINAL) reproduces the noise of the original JUNO’s
OrG
chorus (default value).
(ORIGINAL)
OFF (OFF)
[11]
Control
USb (USB)
Change
MId (MIDI)
Output Mode ALL (USB &
Specifies the output destination of the MIDI messages that are transmitted when you edit patch settings (operate the panel). Default: USB
MIDI)
[12]
Arpeggio Style
1 (Type 1) 2 (Type 2)
Specifies how the arpeggio plays. 1 (Type 1) reproduces the arpeggio of the original JUNO-60 (default value).
*1 Only when using the K-25m keyboard unit (sold separately)
Returning to the Factory Settings (Factory Reset)
Here’s how to return the JU-06A to its factory-set state. 1. While holding
down the BANK [1] button, turn on the power.
The ARPEGGIO [ON/OFF] button blinks. If you decide to cancel the factory
reset, turn off the power. 2. Press the ARPEGGIO [ON/OFF] button to execute
the factory reset. 3. When all buttons blink, turn the JU-06A’s power off,
then on again.
Data Backup/Restore
Backup
1. Connect your computer to the JU-06A’s USB port via USB cable. 2. While
holding down the BANK [2] button, turn on the power.
It takes about 20 seconds to prepare the drive. 3. Open the “JU-06A” drive on
your computer.
The backup files are located in the “BACKUP” folder of the “JU-06A” drive. 4.
Copy the backup files into your computer. 5. After copying is completed,
disconnect the USB cable. Windows 8/7
Right-click on the “JU-06A” icon in “My Computer” and execute “Eject.” Mac OS
Drag the “JU-06A” icon to the Trash icon in the Dock. 6. Turn the JU-06A power
off.
Restore
1. As described in the procedure for “Backup” Step 13, open the “JU-06A”
drive on your computer. 2. Copy the JU-06A backup files into the “RESTORE”
folder of the “JU-06A” drive. 3. After copying is completed, eject the USB
drive and then press the ARPEGGIO [ON/OFF] button. 4. After the LEDs have
completely stopped blinking, turn off the power.
Fixed Battery Operation Mode
This mode makes the unit operate on batteries without switching to bus power
supply even when the USB port is connected. This lets you use the unit even
with a USB port that is not able to supply power. 1. While holding down the
PATCH [1] button, turn on the power. * If you handle batteries improperly, you
risk explosion and fluid leakage. Make sure that you
carefully observe all of the items related to batteries that are listed in
“USING THE UNIT SAFELY” and “IMPORTANT NOTES” (leaflet “USING THE UNIT
SAFELY”).
Control Surface Mode
This makes the unit operate as a control surface. The JU-06A does not produce
sound. 1. While holding down the PATCH [8] button, turn on the power.
Main Specifications
Roland JU-06A: SOUND MODULE
Maximum Polyphony Power Supply
Current Draw
4 voices
Ni-MH battery (AA, HR6) x 4, Alkaline battery (AA, LR6) x 4, USB bus power 500
mA (USB bus power)
Dimensions
300 (W) x 128 (D) x 49 (H) mm 11-13/16 (W) x 5-1/16 (D) x 1-15/16 (H) inches
Weight
995 g / 2 lbs 4 oz (including batteries)
Accessories Owner’s Manual, Leaflet “USING THE UNIT SAFELY,” Alkaline battery (AA, LR6) x 4
Options
Keyboard unit: K-25m Boutique Dock: DK-01
- This document explains the specifications of the product at the time that the document was issued. For the latest information, refer to the Roland website.
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