Bischoff, John – “Aperture ” – [23FIVE Inc.]

This respected computer music pioneer is closely associated with the Center For Contemporary Music at Mills College. Here he performs seven pieces of his recent work in real time, without overdubbing. Tracks range from 4 to 10 minutes in length; some are quite active, others more toward the ambient end of the scale. A few brief descriptions: #1 uses a single piano chord, repeated, to trigger electronic events, including a computer activated bell. #5 has something that sounds like a strangely-processed human voice. #6 reworks Kenneth Atchley’s amplified water sounds. The 23five organization continues to bring us intriguing sound works.