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MIDI implementation | MIDI implementation
108
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FR-7b/FR-5b V-Accordion
1. Received data
■ Channel Voice Messages
● Note off
● Note on
● Control Change
• The value specified by a Control Change message is not reset by a Program
Change, etc.
❍
Bank Select (Controller number 0, 32)
• Only for Free Bass.
❍
Expression (Controller number 11)
• This adjusts the volume of a Part. It can be used independently from Volume
(CC07) messages. Expression messages are used for musical expression within
a performance, e.g., expression pedal movements, crescendo and decrescendo.
❍
Hold 1 (Controller number 64)
❍
Program Change
❍
Channel Pressure
■ System Realtime Messages
❍
Active Sensing
• When Active Sensing is received, the FR-7b/FR-5b starts monitoring the intervals
of all further messages. While monitoring, if the interval between messages ex-
ceeds 420 ms, the same processing will be carried out as when All Sounds Off,
All Notes Off and Reset All Controllers are received, and message interval moni-
toring will be halted.
❍
Start
• When an FA message is received from an external MIDI device such as sequenc-
er, the FR-7b/FR-5b sends all necessary MIDI information for a song header set-
up: Treble, Orchestra, Bass/Free, Orchestra Bass, sound setup.
■ System Exclusive Messages
The System Exclusive Messages received by the FR-7b/FR-5b are messages relat-
ed to Data Set (DT).
● Data Set 1 DT1 (12H)
• The amount of data that can be received at one time depends on the type of data,
and data will be transmitted from the specified starting address and size.
• Data larger than 256 bytes must be divided into packets of 256 bytes or less, and
each packet must be sent at an interval of about 20ms.
2. Transmitted data
■ Channel Voice Messages
● Note off
● Note on
● Control Change
❍
Bank Select (Controller number 0, 32)
❍
Volume (Controller number 7)
• Volume messages are used to adjust the volume balance of each Part.
9. MIDI implementation
Status 2nd byte 3rd byte
8nH kkH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
kk = note number: 00H~7FH (0~127)
vv = note off velocity: 00H~7FH (0~127)
Status
2nd byte 3rd byte
9nH kkH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
kk = note number: 00H~7FH (0~127)
vv = note on velocity: 01H~7FH (1~127)
Status
2nd byte 3rd byte
BnH 00H mmH
BnH 20H llH
n = MIDI channel number: 0H~FH (Ch.1~16)
mm = Bank number MSB: 00H~7FH
ll = Bank number LSB: 00H~7FH
Status
2nd byte 3rd byte
BnH 0BH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
vv = Expression: 00H~7FH (0~127)
Status
2nd byte 3rd byte
BnH 40H vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
vv = Control value: 00H~7FH (0~127)
00H~63H= Off/64H~7FH= On
Status 2nd byte
CnH ppH
n = MIDI channel number: 0H~FH (Ch.1~16)
pp = Program number: 00H~0DH: Treble Register 1~14
00H~15H: Orchestra Register 1~22
00H~06H: Bass/FreeBass/Orch.Bass/Orch
Chord, Orch Free Bass Register 1~7
00H~27H: Set 1~40
Status
2nd byte
DnH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
vv = Channel Pressure: 00H~7FH (0~127)
Status
FEH
Status
FAH
Status Data byte Status
F0H iiH, ddH, ......,eeH F7H
F0H: System Exclusive Message status
ii = ID number: An ID number (manufacturer ID) to indicate the manufacturer
whose Exclusive message this is. Roland’s manufacturer ID is
41H.
dd,...,ee = data: 00H~7FH (0~127)
F7H: EOX (End Of Exclusive)
Status
Data byte Status
F0H 41H, dev, 42H, 12H, aaH, bbH, ccH, ddH, … eeH,
ffH, sum
F7H
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
10H Device ID
00H Model ID #1 (FR-7b/FR-5b V-Accordion)
7CH Model ID #2 (FR-7b/FR-5b V-Accordion)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of
the data to be sent
bbH Address: upper middle byte of the starting address of
the data to be sent
ccH Address: lower middle byte of the starting address of
the data to be sent
ddH Address LSB: lower byte of the starting address of
the data to be sent
eeH Data: the actual data to be sent. Multiple bytes of data
are transmitted in order starting from the address.
:: ::
ffH Data
sum Checksum
F7H EOX (End of Exclusive)
Status
2nd byte 3rd byte
8nH kkH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
kk = note number: 00H~7FH (0~127)
vv = note off velocity: 00H~7FH (0~127)
Status
2nd byte 3rd byte
9nH kkH vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
kk = note number: 00H~7FH (0~127)
vv = note on velocity: 01H~7FH (1~127)
Status
2nd byte 3rd byte
BnH 00H mmH
BnH 20H llH
n = MIDI channel number: 0H~FH (Ch.1~16)
mm = Bank number MSB: 00H~7FH
ll = Bank number LSB: 00H~7FH
Status
2nd byte 3rd byte
BnH 07H vvH
n = MIDI channel number: 0H~FH (Ch.1~16)
vv = Volume: 00H~7FH (0~127), Initial value = 64H (100)