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5
Part I
MIDI Message Overview
1 Product Configuration as a MIDI Device
In terms of a MIDI device, this Instrument consists of a System Section, Performance Controller Section, and Sound Generator
Section. Each of these sections can send and receive specific MIDI Messages in accordance with its function.
1.1 System Section
The System Section manages the Instrument status and user data. A communication method known as a "bulk dump" is
supported, which allows two-way transfer of user data between the Instrument and a computer.
1.2 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
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 by the performer
– Auto accompaniment
– Recorder playback
• Non-output performance
– Demo performance
– Song playback
– Lesson function
– Music Challenge
1.3 Sound Generator Section
The Sound Generator Section consists of a channel-independent common block and an independent instrument part specific
to each channel. Mainly it receives performance information and sound source setting information.
1.3.1 Sound Generator Common Block
The common block consists of system effects, mixer master control, etc. These can be controlled by system exclusive
messages that are basically exclusive to this particular instrument, but several parameters also can be controlled by general
universal system exclusive messages.