Hey everyone! First post here. I have a III/20 (3 manual, 20 rank) pipe organ that I have been building in my home over the past couple years. organ "chamber" My plan is to have three 64 note drivers for each of the three 61 note manuals, a 32 note driver for the pedal, and possibly a driver for the 59 stops (including couplers). Ideally, I would like to have the drawknobs and coupler tabs move, so I would need two 64 note drivers; one for the "on" solenoids and one for the "off" solenoids. This way I could have manual 1 on midi channel 1, manual 2 on channel 2, 3 on 3, pedal on 4, stops "on" on 5, and stops "off" on 6. :o console Unfortunately, my knowledge of electronics is fairly limited. I have built a couple of diode matrix relays with transistor drivers for the organ, but that's about the extent of what I can comprehend right now. relay What would it take to put together something like this? I have read other posts on this forum about driving pipes and read about MIDIbox on the website, but it all goes waaay over my head! ??? What do I need to do to get started? Thanks! Trevor