CZ-1 Have special sysex editing for addicional PD synthesis (no originally documented by Casio) including a few internal resonant varations and pulse waveforms, plus a few more ring mod and noise. And more line selec variations too. But CZ-101, 1000, 3000 and 5000 haven´t. Any one Knows if the standard ROM can be modified to do so?
Don´t know why Casio never made a CZ or PD rebirth because are powerfull source of exclusive sounds. With extended waveforms and adds on in the PD synthesis extructure.