The terpodium is a friction instrument with a keyboard.

Terpodion of the Viandrina Museum in Frankfurt a.d. Oder

A wooden rod is rotated by using the mechanism of a sawing machine. When pressing a key a hammer is pressed against the rotating rod and a mechanism similar to bowing a violin string happens.

The sounds have a large variety of possibilities, from a regular sound to subharmonics, bifurcations, hammerings or noise.


Below is a Power Point presentation with sounds from the instrument investigated at the Viadrina museum in Frankfurt a.d. Oder:

Power Point Terpodion

More videos can be found here:

Terpodion Videos