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Sheet Music: Score

Spectrum : for bass clarinet, marimba and tape / Bozidar Kos.

by Bozidar Kos (1988)


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The title refers to the harmonic or overtone spectrum, which forms the basis for the vertical organisation of pitch in this work. Harmonic fields have been created by mapping a number of pitch sets of different densities onto the harmonic spectrum of 32 harmonics. Each successive set has been mapped onto a spectrum of a different fundamental, creating thus a succession of incomplete or defective spectra, each belonging to another fundamental.

The material on the tape consists of pure harmonics on the one hand and of complex FM sounds on the other. Whereas the harmonics are in perfect 'harmonic' relationship with each other, the organisation of FM sounds is based on the chromatically tempered spectrum, creating thus some incongruity between the two systems. Correspondingly such incongruence appears also between the pitch material played by the bass clarinet and the one played by the marimba.

Published by: Australian Music Centre — 1 facsimile score (57p. -- A3 (landscape))

Difficulty: Professional.

Duration: 11 min.

Copyright held by B.Kos.

The tape, generated on Fairlight CMI, is available from the composer.

This is a handwritten edition — it is not typeset.

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