Years ago the dance company my sister did ballet with as a kid would do their shows at a local high school that had an old Kimball theater organ. It was removed from a silent movie theater, so in addition to ~5000 pipes it had a whole complement of percussion plus a bank of sound effects suitable for film accompaniment--doorbells, ringing telephone, old timey AWOOOGAH car horns, and I'm sure a few others. Those last few never made it into the annual nutcracker as far as I recall, but I remember at one point the organist let some of us bored siblings play around on the console between shows and it was fun to just flip random selector switches and see what sounds came out of the bewildering array of keys. Supposedly it's the 4th largest organ of its type in the world, with something like 20hp worth of blowers to supply the required air. There were chambers in the back wall of the stage, in the auditorium walls either side of the proscenium, and then a rank of MASSIVE pipes over one of the stage wings that made sounds you could feel as much as hear. Truly an amazing piece of art in itself. Seeing the organists' hands and feet flying over the console and making an entire orchestra's worth of music come out of the room itself always blew me away.