> Is it possible to use an external MIDI controller to tell the AN200
> which voices to play on a particular track? I mean rather than have
> to scroll through the AN200's pattern/voice selection rotary wheel.
Yes, check the section in the manual about MIDI implementation.
Since the AN supports more than 128 patches (256 preset + 128 user) you
need to be able to send bank change messages as well as the program
change message. You only need to send the bank select when changing
banks of course, once in a bank you can select any of the 128 patches
in that bank.
Brian