Yamaha RY20 Owner's Manual page 35

Select an octave range by rotating the Jog Dial or by using the [ +1 ] and
4
[ –1 ] buttons.
You can assign any voice to the Bass pad bank. See page 83 for more
information.
Place the unit in Drum Kit Mode by pressing the [DRUM KIT] button. The
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"DRUM KIT" indicator flashes beside the current kit number.
Select a kit by rotating the Jog Dial or by using the [ +1 ] and [ –1 ] buttons.
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To play a voice, tap the appropriate drum pad.
Playing the Pads
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