Build a MIDI foot controller, of course. After dispensing of the old organ guts, [Mark] mounted the pedals in a handsome road case and started working on the electronics. His first inclination was ...

Missouri-based Quimby Pipe Organs, Inc. — thus the name, “Opus 50.” It has four keyboards, numerous foot pedals, and 71 ranks (groups) of pipes, allowing for a tremendous range of sound.

The organ he plays at Trinity has more than 16 foot pedals. Now that Koskamp has had years of practice playing an organ, he says several things keep him inspired, though it’s a constant challenge.