Roland Music ATELIER AT500 Owner's Manual page 134

Applying Various Effects to the Sound
3.
For the part to which you wish to apply the chorus effect,
touch the Chorus "ON/OFF" display to change the setting.
Each time you touch the Chorus setting, it will alternate ON/OFF.
fig.05-15.eps
Indication
ON
OFF
4.
Touch <Exit>.
132
Description
The Chorus effect will be applied to the voice.
The Chorus effect will not be applied to the voice.
NOTE
Some voices do not allow the
Chorus effect to be applied. For
details refer to "Voice List"
(Appendix: separate booklet).
You can open the Lower
Keyboard screen or Upper
Keyboard screen with touching
<Lower> and <Upper>.