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MIDI System Exclusive Message Formats
In the explanations, below, braces < > are used to represent enclosed MIDI
data bytes. Concatenated data is shown by < > < >. Names are also enclosed
in braces as symbolic representations defined further into the explanation.
Values are decimal unless an H is used to denote Hexadecimal values.
For example, the MIDI bytes to select song mode for DEVICE NUMBER 3 are:
F0H, 0, 1, 26H, 3, 1, F7H.
<sys ex message>
= <F0H> <manufacturer> <device num>
<message bytes> <F7H>
<manufacturer>
= <0 1 26H>
<device num>
= one byte in range 0 to 15. Must match
SYSEX DEVICE NUMBER set in the ATR-1a.
<message bytes>
= <0> to select program mode.
or
<1> to select song mode.
or
<2> bypass on
or
<3> bypass off
or
<4><14><system data>
or
<5><31><program data>
or
<6><34><song data>
<system data> =
<midi channel>
1 to 16, 0 = OMNI
<midi sustain>
controller 0 = off, 1 = on
<program change>
controller 0 = off, 1 = on
<midi note>
controller 0 = off, 1 = on
<pitch bend>
controller 0 = off, 1 = on
<mod wheel>
controller 0 = off, 1 = on
<foot switch>
0 = BYPASS, 1 = STEP
<speed controller #>
14 to 31, 13 = OFF
<vibrato rate controller #>
14 to 31, 13 = OFF
<vibrato delay controller #>
14 to 31, 13 = OFF
<step controller #96>
0 = off, 1 = on
<sensitivity>
1 to 25
<detune>
0 to 100
<detune direction>
0 = make sharp, 1 = make flat
<program data> =
<program number>
1 to 50
<speed>
0 to 25
<scale 1>…<scale 12>
for C, C#,…: 0=remove, 1 =tune, 2=bypass.
<vibrato type>
0 = off, 1 = SINE, 2 = SQUARE, 3 = SAW
<vibrato depth>
0 to 100 cents
<vibrato rate>
1 to 97 (.1 to 9.7 sec)