electronics or computer live sound

Brown Velvet is a work for solo bassoon and live electronics. The work is both decrease and increase. There is a pedal (see below), that begins on the lowest pitch of the bassoon, Bb. Only overtones of that note are initially allowed in the bassoon part. The pedal then progressively “migrates” down to Bb-F-Bb-D-Bb, over two octaves, lower than any acoustic sound. At each new pedal, all overtones above it are allowed in the bassoon. So as a result, the descent (decrease) of the pedal allows ever greater harmonic richness (increase) within the bassoonist’s part. The pedal point is electronic. The version created by the composer is a Max/MSP patch, provided along with this score. (Instructions for the electronic player are included in the patch). But if one wishes to make another realization, it should be possible from the score and tunings provided within. It is important however that the pedal be real-time, i.e. not a pre-recorded part. The essence of the piece is a dialogue between the bassoonist and the “pedaler”, who will probably be performing from laptop.

Kati Gleiser, the pianist for whom I wrote Blue Traces, told me about swimming in the ocean at night and marveling at the colorful glow cast from bioluminescent plankton. Moving your arm disturbs the plankton, and in response they set off a bluish trail of soft light. This image gave me the idea for the piece: the piano plays, and the computer creates gently glowing traces of sound. Near the end, everyone becomes more agitated, as if the swimmer were now splashing around and the plankton reacting with more excitement.

 

All the computer sound comes from live sampling of the piano performance, transformed by various kinds of granulation — a technique that can take a short sound and extend it into a long sustained note.

The composer's own voice is memorialized on the playback tape, which features a speaker (electronically processed voice) having a "conversation" with the orchestra about electronic music and the various sounds that can be synthesized (a la mid-1970s), as a friendly jousting back and forth between the tape and the instrumentalists in the orchestra. Requires a tape operator to stop and start a CD or computer audio files at precise moments in the score.