18
9.20.4 Modulation Depth
Format
This message is never sent.
Receipt changes the Vibrato Modulation Depth for the tone that is currently selected by the applicable part.
9.20.5 Null
Format
This message is never sent.
Receipt deselects RPN.
9.21 All Sound Off (78H)
Format
Sent when an SD card is inserted or removed, and when an SD card operation is performed. (PX-830, AP-420)
Receipt stops all voices that are sounding.
9.22 Reset All Controllers (79H)
Format
Sent in the following cases.
• When the keyboard channel is changed
• When a recorder function is used
Receipt initializes each performance controller.
Message Format: BnH 64H 05H 65H 00H 06H mmH 26H 00H
n: MIDI Channel Number
mm: Value
Message Format: BnH 64H 7FH 65H 7F
n: MIDI Channel Number
Message Format: BnH 78H 00H
n: MIDI Channel Number
Message Format: BnH 79H 00H
n: MIDI Channel Number
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