6
Part I
MIDI Message Overview
1 Product Configuration as a MIDI Device
The Instrument consists of a controller component and a sound source component as described below.
• Controller Block
– Keyboard
– Pedals
– Auto accompaniments (PX-110/PX-310)
– Song Memory (PX-110/PX-310)
• Sound Source Block
– Common Sub-blocks
∗ Sound source all-part common sub-block
∗ Mixer all-part common sub-block
∗ Effector sub-block (DSP, Reverb, Chorus, Master EQ)
– Channel Independent Sub-blocks (1 to 16)
∗ Sound source part independent sub-block
∗ Mixer part independent sub-block
1.1 Controller Block
The Controller Block issues messages in accordance with real-time controllers (keyboard and pedals), song memory,
and auto accompaniment functions (PX-110, PX-310). An operation causes the corresponding message to be sent to
the sound source and from MIDI OUT.
The Controller Block normally sends data that is played as-is. When MIDI Chord Judge is turned on, however,
chord judgment is performed on received note data and the applicable auto accompaniment play data is sent.
Accompaniment part send/song memory messages are sent when the Instrument's Accomp/song MIDI Out setting is
turned on (PX-110/PX-310).
The send message channel number corresponds to the Instrument's part number.
1.2 Sound Source Block
The Sound Source Block consists of effectors and other common sub-blocks, and independent instruments for each
channel. It operates in accordance with receive MIDI messages. Setting data can also be sent, depending on
external requests.
1.3 Sound Source Common Sub-blocks
The Sound Source Sub-blocks include sound source settings that are not dependent on sound source parts; namely
effectors, a mixer master sub-block, etc.
Basically, common sub-group parameters can be controlled using system exclusive messages, but a number of
parameters can be controlled using channel messages.
Some effector parameters of the effector DSP settings depend on the channel message of the channel number
specified by the MIDI Global Channel (see "MIDI Channel Number" in section 8.7).
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