This is a manual for an electric piano. It contains MIDI-related configuration information, such as MIDI signal format, send and receive note and force ranges.
This document serves as a technical reference for controlling the Yamaha YDP-135 digital piano using computer-generated MIDI messages. It provides specific data formats and parameter mappings required to operate various functions of the instrument remotely.
The guide covers standard MIDI protocols including Note On/Off, Control Change events (such as Volume, Expression, and Pedals), Program Changes for selecting voices like Grand Piano and Strings, and System Realtime Messages. Additionally, it details Yamaha-specific System Exclusive messages for adjusting parameters such as Master Tuning, Effect types, and Multi-part settings.
| Note Number Range (Transmit) | 09H ~ 78H = A-2 ~ C8 |
|---|---|
| Note Number Range (Receive) | 00H ~ 7FH = C-2 ~ G8 |
| Velocity Range (Key ON) | 01H ~ 7FH |
| Master Volume Default Value | 7F (127) |
You must specify program change 0, as the document states to use a number one less than the listed program change number.
Yes, receiving the GM On message resets the MIDI system to its default settings.