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Four Voice Canon #6 for Computer

from The Theory of Impossible Melody (ART 1004, 1989) by Larry Polansky

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#6 (1986) was written for a "homebre" sampler, built at the Mills College Center for Contemporary Music from a single board 68000 computer running a prototype of HMSL, and analog-to-digital and digital-to-analog converters. The sound material is four five-second samples: frogs in the Mills frog pond, a Javanese rebab (played by Jody Diamond), a baritone sax (played by Anthony Braxton), and the sine wave preset of a Kurzweil 250 sampler. The sampling procedure in this work is intentionally "raw": no filters, zero-crossing algorithms, deglitching or smoothing techniques were used. All of the sounds, except the frogs, rise in pitch over the five second span, so the computer program, stochastically choosing starting memory locations later and later in the sample memory, tends to play higher pitches for faster voices. The rhythmic values, derived from the permutation lists and the mensuration canon, are determined simply as a number of bytes of memory for a given part. The piece is generated and performed in real time by the computer.

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from The Theory of Impossible Melody (ART 1004, 1989), released December 24, 1989

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Artifact Recordings San Francisco, California

ARTIFACT RECORDINGS is a project of Ubu, Incorporated, an artist-run, non-profit organization supporting experimental and electronic music based in the San Francisco Bay Area. Our download and compact disk series is dedicated to representing a living experimental music tradition that continues to thrive in the cracks between the commercial, academic and classical music establishments. ... more

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