Casio KX-101 Operation Manual page 21

Use as a Keyboard Instrument
Press the SYNCHRO/STOP button (for Synchro Start).
When this button is pressed, a high-pitched confirmation sound is heard.
Select the desired rhythm with the white keys.
* The rhythm sound is not heard yet. (Synchro Start standby mode.)
When you want to use arpeggio for Auto-Accompaniment, press the
ARPEGGIO button. (The indicator will light up.)
The arpeggio function can be turned on or off with the ARPEGGIO
button any time during Auto-Accompaniment.
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As soon as you press the chord selectors to create a chord, chord/bass/
arpeggio Auto-Accompaniment in step with the rhythm will start.
Even if you remove your fingers from the chord selectors, the same
kind of chord will continue to be heard until you next press the chord
selectors.
The volume of the chords, bass and arpeggios can be adjusted individual-
ly with the volume controls.
* The bass volume is also adjusted with the CHORD volume control.
Pressing the SYNCHRO/STOP button stops the rhythm and Auto-
Accompaniment.
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