Synth Site |  Roland |  SK-88 Pro

I can set 2 different sounds using 'Double Module Mode'; one for the keyboard itself, and one on the 'second' module which can be played using a different keyboard MIDI'd into the SK88.

All sounds can be effected, with the keyboard's built in effects, which are all quite useable.

The only critisism would be that you can only get the basic sounds (all 1,117 of them!) on the 'B' module in Double mode; you can't put the user sounds on there... they are only on module 'A'.