Midi Data Compatibility - Yamaha CP300 Owner's Manual

MIDI Data Compatibility

The data and the MIDI device must match in regards to the items below.
Voice allocation format
With MIDI, Voices are assigned to specific numbers, called "program numbers." The numbering standard
(order of Voice allocation) is referred to as the "Voice allocation format." Voices may not play back as expected
unless the Voice allocation format of the Song data matches that of the compatible MIDI device used for
playback.
GM System Level 1
This is one of the most common Voice allocation formats. Many MIDI devices are compatible with GM
System Level 1. Most commercially available music data is created as Format 0 "GM System Level 1."
XG
XG is a major enhancement of the GM System Level 1 format, and was developed by Yamaha specifically
to provide more Voices and variations, as well as greater expressive control over Voices and effects, and to
ensure compatibility of data well into the future. Song data recorded on the instrument using Voices in
the XG category is XG-compatible.
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CP300 Owner's Manual