Concealed Behaviours

for bass clarinet and interactive computer (max/msp)
composed 2002/03; duration 15 minutes
world premiere march 2 2003
ASPEKTE Salzburg 2003 (Austria)
commissioned and premiered by Henri Bok

‘Concealed Behaviours’ unfolds as the inner nature of the music is exposed, by being subjected to mappings of real-time performance data. The computer accompaniment in the opening section concentrates on analysis data from the player’s timbral variations as specified in the score. In the following section, high-level performance data is used for manipulating gesture and synthesis, and the two computer interludes make use of this analysis data as well. The second interlude becomes the onset of the last section, where extracted performance data and analysis of timbre variations is applied to a pulsating space, before a spectral snapshot of the bass-clarinet is used as a codal canvas.

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