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Creating a Rhythm Set
How Percussion Instruments Are Organized
A Rhythm Set is a collection of Rhythm Tones, each of which represents a percussion instrument played
on a single key. An instrument consists of the following four elements.
fig.2-01.e
WG (Wave Generator)
This specifies the PCM waveform (or “wave”) that forms the basis of the Rhythm Tone - four waveforms
can be assigned to each Rhythm Tone. You can also determine how the pitch of the Rhythm Tone will
change.
The XV-2020 has 1083 different waveforms. (See Waveform List p. 121.)
All Rhythm Sets built into the XV-2020 consist of Rhythm Tones based on these waveforms.
TVF (Time Variant Filter)
This sets how the frequency characteristics of the Rhythm Tone will change.
TVA (Time Variant Amplifier)
This sets how the Rhythm Tone’s volume and stereo positioning will change.
Envelope
An envelope applies changes to the Rhythm Tone over time. There are separate envelopes for pitch, TVF
(filter) and TVA (volume). For example, you would use the TVA Envelope to modify the way in which the
Rhythm Tone attacks and decays.
Choosing the Tones That Sound (Tone On/Off)
Refer to p. 45.
Confirming Tones
Refer to p. 45.
Note Number 98 (D7)
Note Number 97 (C#7)
Note Number 36 (C2)
Note Number 35 (B1)
Rhythm Tone (Percussion instrument sound)
Rhythm Set
WG
Pitch
Envelope
TVF
TVF
Envelope
TVA
Envelope
TVA
The RHYTHM indicator change from solidly lit to flashing whenever a parameter
is edited.If you turn off the power or choose another Rhythm set while the
indicator is blinked, you new Rhythm sets settings will be lost. If you wish to
preserve them, save the changed settings using the Write operation. (p. 92)