I found this keyboard in a closet a while ago, and I'm thinking of buying an MIDI to USB cable, and attempt to play some Doom MIDIs with it. I'm not entirely sure if I should, because there's very few information about this keyboard on the webs.
Plus it has 99 out of 128 GM instruments, and some instruments sound like OPL.
What should I do? Can someone give me some more information about this MC-68A?