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Part I
MIDI Message Overview
1
Product Configuration as a MIDI Device
As a MIDI device, this Instrument consists of the Performance Controller Section and Sound Generator
Section described below. Each of these sections can send and receive specific MIDI Messages in accordance
with its function.
1.1
Performance Controller Section
The Performance Controller Section performs keyboard play and controller operations, and generates
performance messages in accordance with auto play, etc. Basically, generated performance messages are
sent to external destinations while also being transmitted to the Sound Generator Section. The channel
number of the sent channel message is in accordance with the Instrument's instrument part number.
MIDI Output Performance Information The following describes the performance information
that is output and is not output as MIDI signals.
• Output performance
– Keyboard play and controller operations by the musician
• Non-output performance
– Demo Songs
– Song playback
– Auto accompaniment
1.2
Sound Generator Section
The Sound Generator Section mainly performs receive of performance information and sound source
setting information. It consists of a common part that does not depend on the channel and a musical
instrument part that is independent of each channel.
1.2.1
Sound Generator Common Block
The common block consists of system effects, mixer master control, etc. A number of the parameters of
these items can be controlled by universal system exclusive messages.
1.2.2
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. 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.
4
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