Casio CZ/ VZ/ FZ - Pro Series

(1) Track Setting: While pressing and holding down the REAL TIME key, 
simultaneously press the track selector that corresponds to the track 
in which you wish to record. [snip]
(a) Poly Setting: [polyphony to be played locally.]
(b) Beat Setting: [# = beats/measure; H(igh), M(edium), L(ow) = 
Metronome Volume]
(c) Tempo Setting: [BPM] 

(2) Initiating Recording: Press the RECORD key while a track is in 
the set status (indicator above a track is blinking).