Opening Sweep is Ocsid's second CD. For this performance, recorded on November 12, 1999, the trio of CM von Hausswolff, Edvard Graham Lewis, and Jean-Louis Huhta was augmented by Peter Pfaff, all performing on samplers, computers, and electronics. Recorded in a Munich club, this mammoth session started at 10 p.m. and ended at 3:30 a.m., but the CD only contains the first 75 minutes. The music covers a wide range, from rhythm-deprived soundscapes to segments of ravelike energy. Sound sources go from ethereal synthesizer patches to snippets of radio and TV broadcasts to cheesy '60s electronic pop music. The continuous set lacks cohesion; there are moments where it seems no one is aware of what the others are doing, as voice samples come in and out at random. Things come together and then fall apart again, but someone always manages to keep the piece moving forward. Now, when faced with such an edited set, one must ask: Why stop here? Why brutally cut the piece at 75:04 instead of 70 or 78 minutes? In the last 120 seconds the music takes a turn toward noise as the texture disintegrates and, when it stops on a dime, the listener is left clueless. There are stronger experimental sets out there, but this one is intriguing enough to be worthwhile. Not for everybody, of course.