Yamaha Clavinova CLP-175 Owner's Manual page 60

Playing Back Recorded Songs and Commercially-available Music Data
Voice arrangement format
XG voice arrangement
GM system level 1 voice arrangement
DOC voice arrangement
Performance data recorded with preset XG voices on the CLP-175 can
be played on other XG-compatible instruments.
See page 6 of the separate "Reference Booklet" for the XG voice list.
Refer to "Data compatibility" on page 109 for more information on
formats.
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CLP-175
TERMINOLOGY
Voice arrangement format:
A structured method for
numbering the voices for
assignment.