This is an excerpt from the music for the film Death of the Red Planet (1973) which was featured in the July 1973 issue of American Cinematographer.  You can read this article here.

The music was created on the Buchla 200 system (The Electric Music Box) and was the first quadraphonic electronic music soundtrack composed for a motion picture.

Schrader has a unique ability to generate high-energy music.American Cinematographer