Yamaha TG500 Owner's Manual page 125

R1
"hold" Mode
If the "hold" mode is selected, the envelope begins immediately from maxi-
mum AWM level, allowing the fast attack transients of waveforms to pass
unaffected. In this case the R1 parameter is replaced by the HT (Hold Time)
parameter. The HT parameter determines the length of time between the begin-
ning of the envelope and the point at which the envelope begins to move
towards L2 (Level 2) at R2 (Rate 2), as shown below.
VOICE EDIT MODE / 3: Full Edit. 3-2: AEG
R2
R3
L2
L3
HT
R3
L2
3-2-01: LEVEL / 3-2-02: RATE
R4
RR
R4
L3
RR
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