Bell 01
Tune VCO-A to C6.
Tune VCO-B to E5.
Detune the oscillators to taste.
Try different octave combinations.
Try adjuting the FM (MOD and INDEX) amount.
For AM: try patching VCO-B sine to Bi>Uni, then to Ring Mod VCO-B, or patch VCO-B sine to VCA-B CV in, then VCA-B to Mixer in 1.