Hi.
As Rikki say, it's sure a no.1 keyboard for it's time, and still are.
There are composer to edit patterns, sequencer, panelmemories, midi etc.
But I'm afraid it's not standard GM, and that make it a pain to map the
drums if midiconnection are what you want.
It's buildt like a tank, but the floppydrive as other spare parts might
be very hard to find if need replacements.
The price (if it was here in this country) is less than the stand alone,
so it looks ike a "give away".
Cheers
GJ