Summary of Maps and MIDI Messages

Summary of Maps and MIDI Messages

Following are the status bytes for MIDI messages and the map types that affect each message.

MIDI status	Description	Map types
0x80–0x8F	Note off	Channel maps, key maps
0x90–0x9F	Note on	Channel maps, key maps
0xA0–0xAF	Polyphonic-key aftertouch	Channel maps, key maps
0xB0–0xBF	Control change	Channel maps, patch maps
0xC0–0xCF	Program change	Channel maps, patch maps
0xD0–0xDF	Channel aftertouch	Channel maps
0xE0–0xEF	Pitch-bend change	Channel maps
0xF0–0xFF	System	Not mapped

The high-order four bits represent the status value. The low-order four bits represent the channel information.
Patch maps affect only controller 7 (main volume).
System messages are sent to all devices listed in a channel map.