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English Chapter 21: Glossary
Transpose
Changing the key of a song. For example, a song
in the key of C is transposed to the key of D when
it is moved up two semitones.
Velocity
Because the loudness of a piano note is
determined by the speed (velocity) with which a
string is struck by a hammer, note loudness is
referred to as velocity.
Voice
The sounds produced by a tone generator
expressing various instruments. See Chapter 22
“Internal XG Tone Generator Voice & Drum Kit
List” for a listing of basic voices.
XG
Yamaha XG is an extension of the GM (General
MIDI) format. Its greater polyphony, more voices,
and use of effects enhances the compatibility
between MIDI devices. When a song in the
Yamaha XG format is played on another XG-
compatible tone generator or synthesizer, it plays
and sounds as the original composer/creator
intended.
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