Casio AP-200, PX-120 10 Mode Message, 9.18All Sound Off (78H), 9.19Reset All Controllers (79H), 10.1All Notes Off (7BH)

Send

This message is never sent.

Receive

Receipt deselects RPN.

9.18All Sound Off (78H)

Format

Message Format: BnH 78H 00H

n: MIDI Channel Number

Send

This message is never sent.

Receive

Receipt stops all voices that are sounding.

9.19Reset All Controllers (79H)

Format

Message Format: BnH 79H 00H

n: MIDI Channel Number

Send

This message is sent when the keyboard channel is changed and when the recorder function is used.

Receive

Receipt initializes each performance controller.

10 Mode Message

10.1All Notes Off (7BH)

Format

Message Format: BnH 7BH 00H

n: MIDI Channel Number

Send

This message is sent when the keyboard channel is changed and when a Music Library or recorder operation is performed.

Receive

Receipt of any of this message releases the currently sounding voice (same as releasing the keyboard key).

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