Yamaha QY20 Music Sequencer MIDI Data Format Reference

This document contains the safety information of this product, including power connection, use environment and sound volume setting

Brand: Yamaha
Document type: User Manual
Language: English
Pages: 11
File format: PDF
File size: 39 KB
Published: 02 July, 2012
Updated: 30 September, 2023
Model: QY20
MD5 checksum: D70F952D72035DFAB9EA42DE72BE7835
PDF: Yamaha QY20 Music Sequencer MIDI Data Format Reference PDF

About this manual

The Yamaha QY20 is a music sequencer that communicates via standard MIDI protocols. This manual defines the specific MIDI data formats used by the device's Tone Generator and Sequencer sections.

The document outlines how the device handles Channel Voice messages, including Note On/Off, Control Change, and Program Change events. It also details System Exclusive (SysEx) message structures for bulk dumping sequence and song data.

What's inside

Tone Generator Section
Sequencer Section
Transmit Flow
Receive Flow
Channel Voice Messages
Program Change
Pitch Bend Change
System Exclusive Message
Bulk Dump

Specifications

MIDI Transmit Channels (Tracks 1-4)	Channels 1 through 7
MIDI Transmit Channel (Drum Track)	Channel 10
Pitch Bend Resolution	14 bits

Frequently asked questions

What happens to the voice when Program Change number p=0...127 is received in GM mode?

The device assumes the data is GM-format and selects appropriate voices; if none are available, the voice is turned off.

When does Exclusive Message reception occur?

It only occurs when the initial PLAY, VOICE, and PATTERN mode displays are showing; it does not occur in DEMO mode.

Download PDF (39 KB)