The Telharmonium was revealed to the world in the early 1900s. This extremely heavy (as in, around 210 tons) organ-like instrument utilized electromagnetic generators, which rotated to produce pulses ...
Theremins are a bit of an odd instrument to begin with, but [AphexHenry] decided to put one where no theremin has gone before: into a baguette. The “baguetophone” is a theremin and piezo-percussion ...