Casio CZ/ VZ/ FZ - Pro Series

The CZ (101/1000/3000/5000) will only play 5 octaves via MIDI note 
numbers 36-96. It will respond to all MIDI note numbers 0-127 but
will fold the octaves over after the "C" note 96, and below the "C" 
note 36. So the octave that will fold over depends on the 6 octave 
controller you are using. The CZ (101/1000/3000/5000) oscillators
have a greater range, more than 10 octaves. From a very high "C" to 
sub-audio clicking using the octave 0, -1, +1, and for DCO 2 detune 
+/- 3 octaves.
 The CZ-1 is the only CZ to play a 7 octave range via MIDI notes.

Terry (The Casio Kid)

> As we all know, the CZ (101/1000) has a 4 octave keyboard, but
works 
with 6 octaves (Octave 0, -1, +1).
>  
> Question: With a 6 octave MIDI controller connected in the CZ, how 
many octaves will work?
>  
> Thanks
>  
> Ricardo Gabriel - BR