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VC-2 MIDI Implementation
● Universal Realtime System Exclusive Messages
❍ Master Volume
Status
Data byte
F0H
7FH, 7FH, 04H, 01H, llH, mmH
Byte
Explanation
F0H
Exclusive status
7FH
ID number (universal realtime message)
7FH
Device ID (Broadcast)
04H
Sub ID#1 (Device Control)
01H
Sub ID#2 (Master Volume)
llH
Master Volume lower byte
mmH
Master Volume upper byte
F7H
EOX (End Of Exclusive)
* The lower byte (llH) of Master Volume will be handled as 00H.
* The Master Level parameter (SYSTEM Com Master) will change.
❍ Master Fine Tuning
Status
Data byte
F0H
7FH, 7FH, 04H, 03H, llH, mmH
Byte
Explanation
F0H
Exclusive status
7FH
ID number (universal realtime message)
7FH
Device ID (Broadcast)
04H
Sub ID#1 (Device Control)
03H
Sub ID#2 (Master Fine Tuning)
llH
Master Fine Tuning LSB
mmH
Master Fine Tuning MSB
F7H
EOX (End Of Exclusive)
mm, ll:
00 00H - 40 00H - 7F 7FH (-100 - 0 - +99.9 [cents])
* The Master Tune parameter (SYSTEM Com Master) will change.
❍ Master Coarse Tuning
Status
Data byte
F0H
7FH, 7FH, 04H, 04H, llH, mmH
Byte
Explanation
F0H
Exclusive status
7FH
ID number (universal realtime message)
7FH
Device ID (Broadcast)
04H
Sub ID#1 (Device Control)
04H
Sub ID#2 (Master Coarse Tuning)
llH
Master Coarse Tuning LSB
mmH
Master Coarse Tuning MSB
F7H
EOX (End Of Exclusive)
llH:
ignored (processed as 00H)
mmH:
28H - 40H - 58H (-24 - 0 - +24 [semitones])
* The Master Key Shift parameter (SYSTEM Com Master) will change.
● Global Parameter Control
❍ Scale/Octave Tuning Adjust
Status
Data byte
F0H
7EH, 7FH, 08H, 08H, ffH, ggH, hhH, ssH...
Byte
Explanation
F0H
Exclusive status
7EH
ID number (Universal Non-realtime Message)
7FH
Device ID (Broadcast)
08H
Sub ID#1 (MIDI Tuning Standard)
4
08H
ffH
Status
F7H
ggH
hhH
ssH
F7H
● Data Transmission
This instrument can use exclusive messages to exchange many varieties of internal
settings with other devices.
The model ID of the exclusive messages used by this instrument is 00H 53H.
❍ Data Request 1 (RQ1)
Status
F7H
This message requests the other device to transmit data. The address and size
indicate the type and amount of data that is requested.
When a Data Request message is received, if the device is in a state in which it is
able to transmit data, and if the address and size are appropriate, the requested
data is transmitted as a Data Set 1 (DT1) message. If the conditions are not met,
nothing is transmitted.
Status
F0H
Byte
F0H
41H
dev
00H
Status
00H
F7
0DH
11H
aaH
bbH
ccH
ddH
ssH
ttH
uuH
vvH
sum
F7H
* The size of data that can be transmitted at one time is fixed for each type of data.
* For the checksum, refer to (p. 14).
* Not received when the Receive Exclusive (Rx Sys-Ex) parameter (SYSTEM
Status
F7
Sub ID#2 (scale/octave tuning 1-byte form)
Channel/Option byte 1
bits 0 to 1 = channel 15 to 16
bit 2 to 6 = Undefined
Channel byte 2
bits 0 to 6 = channel 8 to 14
Channel byte 3
bits 0 to 6 = channel 1 to 7
12 byte tuning offset of 12 semitones from C to B
00H = -64 [cents]
40H = 0 [cents] (equal temperament)
7FH = +63 [cents]
EOX (End Of Exclusive)
Data byte
41H, dev, 00H, 00H, 0DH, 11H, aaH,
bbH, ccH, ddH, ssH, ttH, uuH, vvH, sum
Explanation
Exclusive status
ID number (Roland)
Device ID (dev: 10H - 1FH, 7FH)
Model ID #1 (VC-2)
Model ID #2 (VC-2)
Model ID #3 (VC-2)
Command ID (RQ1)
Address MSB
Address
Address
Address LSB
Size MSB
Size
Size
Size LSB
Checksum
EOX (End Of Exclusive)
And data requests must be made with a fixed starting address and size. Refer to
the address and size given in "Parameter Address Map" (p. 6).
Common MIDI/USB) is OFF.
Status
F7H
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