Edirol Studio Canvas SD-20 Mode D'emploi page 15

GM2 mode
This sound generator mode is compatible with the "GM2" sound generator format.
GM2 is "recommended practice," and it is backwardly compatible with GM. It was created in order
to allow more sophisticated performance expression and greater compatibility. It includes detailed
definitions concerning sound editing and the use of effects (things that weren't covered by the
earlier GM format), and it also expands the sound set. GM2-compatible sound generators will
correctly play back music data bearing either the GM or GM2 logos.
When it is necessary to make a distinction, this manual will sometimes refer to "GM1" to indicate
the earlier GM format which does not include the extended specifications of GM2.
GS mode
This sound generator mode supports the "GS" sound generator format promoted by Roland
Corporation.
In addition to the General MIDI functionality, this format expands the sound set, and also enhances
compatibility by providing detailed specifications for functionality such as sound editing and
effects (reverb and chorus). For flexibility in meeting future needs, it also provides for the addition
of new sounds and expanded functionality. Since the GS format is compatible with GM, it allows
GM scores to be played in the same way as GS music data (music data created in conformity with
the GS format).
XGlite mode
XG is a sound generator format promoted by Yamaha Corporation, which is based on GM1
(General MIDI 1). It provides detailed specifications concerning expansion of the sound sets,
editing methods, and effects structures and types.
XGlite is a reduced-functionality ("lite") version of XG, which allows simple playback of XG music
data on a sound generator bearing the XGlite logo. Since XGlite has some limitations on the
parameters and effects that can be controlled, the XG music data may sound different than the
original data.
About the sound generator modes
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