The California EAR Unit is an American chamber ensemble dedicated to the performance of contemporary classical music. The group was founded in March 1981 and is based in Los Angeles, California.

In this piece they are performing a piece originally arranged by John Adams.

Here is a site that offers extensive information on the history of/ physics of electroacoustic music. Recommended for those interested in Stockhausen, musique concrete, Futurists, Cage -ites, etc.

Here is a link to a handy pdf that provides the history of electronic music post 1960s and outlines it largely as a response to the alien-ness of experiences stemming from the Vietnam war.