Oh, come now. Multiple manuals, pedal board, draw stops, pistons, couplers, kick-swell...so much nice stuff to animate "up and down" as well as "back and forth." http://www.wanamakerorgan.com/stoplist.html Various parties have created within the Python language utilities to read a MIDI file. Ockham's script, operating within Poser, leverages some of these utilities to extract animation events from that file. Download his free calliope and try out the demonstration tune and you'll see how it works.