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Midi implementation, Received data, Transmitted data – Roland FR-7 User Manual

Page 105: Midi implementation v-accordion, Channel voice messages, System realtime messages, System exclusive messages

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MIDI implementation

V-Accordion

r

105

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-7/FR-5 starts monitoring the intervals of

all further messages. While monitoring, if the interval between messages exceeds
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 monitoring will
be halted.

Start

• When an FA message is received from an external MIDI device such as sequenc-

er, the FR-7/FR-5 sends all necessary MIDI information for a song header setup:
Treble, Orchestra, Bass/Free, Orchestra Bass, sound setup.

System Exclusive Messages

The System Exclusive Messages received by the FR-7/FR-5 are messages related
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-7/FR-5 V-Accordion)

7CH

Model ID #2 (FR-7/FR-5 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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