2. THE GENERAL MIDI SYSTEM AND GS
FORMAT
General MIDI System
The General MIDI System is a universal set of specifications for sound generating
devices. These specifications seek to allow for the creation of music data which is not
limited to equipment by a particular manufacturer or to specific models.
The General MIDI System defines things such as the minimum number of voices that
should be supported, the MIDI messages that should be recognized, which sounds cor-
respond to which Program Change numbers, and the layout of rhythm sounds on the
keyboard. Thanks to these specifications, any device that is equipped with sound
sources supporting the General MIDI System will be able to accurately reproduce
General MIDI Scores (music data created for the General MIDI System), regardless of the
manufacturer or model.
GS Format
The GS Format is a standardized set of specifications for Roland’s sound generators
which defines the manner in which multi-timbral sound generating units will respond to
MIDI messages. The GS Format also complies with the General MIDI System.
The GS Format also defines a number of other details. These include unique specifica-
tions for sounds and the functions available for Tone editing and effects (chorus and
reverb), and other specifications concerning the manner in which sound sources will
respond to MIDI messages.
Any device that is equipped with GS Format sound sources can faithfully reproduce GS
Music Data (music data created under the GS Format).
This product supports both General MIDI and GS.
Song data which carries either of these logos can be accurately reproduced.
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