The Electro-Theremin is an electronic musical instrument developed by trombonist Paul Tanner and amateur inventor Bob Whitsell in the late 1950s to produce a sound to mimic that of the theremin. and played it subsequently on several television and movie soundtracks, including George Greeley's theme for the 1960s TV series My Favorite Martian and on an LP record titled Music from Outer Space.
Tannerin
In 1999, Tom Polk built a replica of the original Electro-Theremin for Brian Wilson's solo tour of that year. Polk called his instrument the Tannerin in honor of the original creator and performer.