Four Voice Canon #9 (“Anna
Canon”) a, b, c, f
Date: 1994.
Place: Dartmouth.Sounds: Four short non-verbal samples of my daughter Anna’s voice
at age 3.
Instrumentation: Tape. Elements: Duration, stereo placement, loudness, pitch.
Comments: Meant to be a kind of “public
domain” music software canon, using Csound,
HMSL, and Soundhack collaboratively. Grew out of efforts to teach large
computer music classes outside of a studio, and an interest, at the time, in
cheap or free pluralistic, but powerful, music software. HMSL wrote the piece
(using the Knuth algorithm, and in the process, I developed a large “general”
software library for four voice canons which, naturally, I’ve never used
again), generating a score for Csound, which realized one voice using a simple
soundfile playback orchestra. That voice was pitch/duration shifted by
Soundhack to make the canon.
There are four versions, each with
their own superparticular pitch/tempo ratios:
9a: 4:5:6:7 9b: 6:7:8:9
9c: 8:9:10:11 9d: f (golden mean).
#9b is on the Bregman Electronic Music
Studio CD-ROM, and is the only one that has been “performed.” This piece is
also part of a set of tape works called the Three
Anna Studies (each released independently, but all three on my Artifact CD,
Change). #9b also released on Cold Blue CD.
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