The long lost, 478-key Moog-Rothenberg keyboard makes its return

A little-known invention by Bob Moog in collaboration with mathematician/theorist David Rothenberg has come back from the dead. With 478 keys and 31 tones, just one was produced, and that unit fell into disrepair – until now. Rebuilt and rewired, it just took to the stage for a concert of music in all its microtonal splendor.