Midi implementation, Received data, Transmitted data – Roland FR-5b User Manual

Page 108: Midi implementation | midi implementation, Fr-7b/fr-5b v-accordion, Channel voice messages, System realtime messages, System exclusive messages

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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)

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