Wikipedia
Orthotonics
The Orthotonics were an American experimental rock and free improvisation group from Richmond, Virginia. They began in 1979 as the Ortho-Tones, but changed their name to the Orthotonics in 1982. The group released three albums before splitting up in 1989.
Eugene Chadbourne at AllMusic said the Orthotonics were "unusual" with material "of great interest from the standpoint of text as well as musically".