Yamaha PSR-12 Product Manual page 13

3. Press a key
Press one of the 19 keys in the Auto
Bass Chord key section 7 on the left
side of the keyboard. You will hear the
corresponding chord with bass and
rhythm accompaniment. For instance,
when you press "C", you'll obtain a
C major chord that strums along with
the bass and rhythm.
4. Set the volume
Adjust the volume to suit the overall
level using the Auto Bass Chord
VOLUME control
5. Set the tempo
Set the tempo you want using the
TEMPO control in the Rhythm
section.
6. Set the Bass and Chord voices
Enjoy selecting different bass and
chord voices using the BASS and
CHORD VOICE selectors
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