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1.3.2 Instrument Part Block
The instrument part section consists of a total of 32 instrument parts, divided into two groups, named
Group A and Group B of 16 instruments each. Each part can perform operations and setting changes
using channel messages and Instrument’s system exclusive messages. Only Group B can be controlled
by external channel messages.
As shown in the following table, there is a fixed relationship between channel message receive channel
numbers and instrument parts.
Numb er Name Channel Assigned Function
00 A01 01 Keyboard (Main)
01 A02 02 Keyboard (Layer)
02 A03 03 Keyboard (Split)
03 A04 04 Keyboard/Recorder (Harmonize)
04 A05 05 Sampling Phrase
05 A06 06 Guide Sound
06 A07 07 Guide Voice
07 A08 08 Metronome
08 A09 09 Auto Accompaniment (Percussion)
09 A10 10 Auto Accompaniment (Drum)
10 A11 11 Auto Accompaniment (Bass)
11 A12 12 Auto Accompaniment (Chord 1)
12 A13 13 Auto Accompaniment (Chord 2)
13 A14 14 Auto Accompaniment (Chord 3)
14 A15 15 Auto Accompaniment (Chord 4)
15 A16 16 Auto Accompaniment (Chord 5)
16 B01 01 MIDI/Auto Performance Functions/Recorder (Keyboard Playback Main)
17 B02 02 MIDI/Auto Performance Functions/Recorder (Keyboard Playback Layer)
18 B03 03 MIDI/Auto Performance Functions/Recorder (Keyboard Playback Split)
19 B04 04 MIDI/Auto Performance Functions/Recorder (Solo 1)
20 B05 05 MIDI/Auto Performance Functions/Recorder (Solo 2)
21 B06 06 MIDI/Auto Performance Functions/Recorder (Solo 3)
22 B07 07 MIDI/Auto Performance Functions/Recorder (Solo 4)
23 B08 08 MIDI/Auto Performance Functions/Recorder (Solo 5)
24 B09 09 MIDI/Auto Performance Functions
25 B10 10 MIDI/Auto Performance Functions
26 B11 11 MIDI/Auto Performance Functions
27 B12 12 MIDI/Auto Performance Functions
28 B13 13 MIDI/Auto Performance Functions
29 B14 14 MIDI/Auto Performance Functions
30 B15 15 MIDI/Auto Performance Functions
31 B16 16 MIDI/Auto Performance Functions
2 Timbre Type Specific Operation
The sound source operation performed for a sound generator instrument receive message may depend on
the value of the Timbre Type (see “About the Timbre Type” in “11 Program Change”) of each part’s
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