Roland AT800 Music Atelier Owner's Manual page 147

2.
Touch either <Upper> or <Lower>.
Indication
Upper
Lower
3.
Touch < > <
4.
Touch the Sustain setting to switch between "ON" and
"OFF."
Each time you touch the Sustain setting, it will alternate ON/OFF.
5.
Touch <Exit>.
Description
To apply sustain to the Upper part
To apply sustain to the Lower part
> to display the Sustain.
Applying Various Effects to the Sound
NOTE
You can touch <Pedal> to
access the Pedalboard screen
and change the sustain settings
for the pedal part.
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