Roland A-37 Midi Implementation Manual

A-37 MIDI Implementation
1 – RECEIVE DATA
All recognized MIDI messages from MIDI-IN are retransmitted on MIDI-OUT-A, with no effect on internal
A-37 performance, except for the A-37 Patch SYS-EX messages that are used to modify the A-37 parameter
area.
Refer to "System exclusive message" description.
2 – TRANSMIT DATA

Channel voice Message

g

Note off

Status Second Third
9nH kkH
n=MIDI channel number: 0H – FH (ch.1 – ch.16)
kk=Note number:
00H = Velocity

Note on

g
Status Second Third
9nH kkH
n=MIDI channel number: 0H – FH (ch.1 – ch.16)
kk=Note number:
vv=Velocity

Control Change

g
Status Second Third
BnH ccH
n=MIDI channel number:
cc=Control change number:
vv= Control change value

Program Change

g
Status Second
CnH ppH
n=MIDI channel number:
pp=program change number:

Channel After Touch

g
Status Second
DnH vvH
n=MIDI channel number:
vv=value:
00H
00H –7FH (0 – 127)
(0)
vvH
00H –7FH (0 – 127)
01H – 7FH (1 – 127)
vvH
0H – FH (ch.1 – ch.16)
00H –7FH (0 – 127)
00H – 7FH (0 – 127)
0H – FH (ch.1 – ch.16)
00H –7FH ( prog. 1 – prog.128)
0H – FH (ch.1 – ch.16)
00H –7FH (0 – 127)
1