The California EAR Unit is a chamber ensemble dedicated to the performance of contemporary music. Its concerts typically involve use of traditional instruments and electro-acoustic and interactive computer techniques. For as aggressively modern as that description sounds, much of the music they perform is quite accessible, even catchy in its use of multiple genres, like jazz, rock, and ethnic styles, not to mention classical. That said, its performance and advocacy of music by Morton Feldman, Elliott Carter, John Cage, Charles Wuorinen, Morton Subotnick, and other such advance...