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Work

Hyperbodies : for computer-controlled robotic piano

by Daniel Portelli (2015)

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The Australian Music Centre's catalogue does not include any recordings or sheet music of this work. This entry is for information purposes only.

Materials for this work may be lodged in our collection in the future. Until then, any enquiries should be made directly to the composer/sound artist or their agent.

Work Overview

Hyperbodies is a tempo-proportion, sound mass canon, composed with MIDI data to control pitch, velocity, and durations of each note. The process behind the work was to use a single short rhythmic sequence. This rhythmic template is repeated and assigned to all 88 keys of the piano-with each key also assigned its own independent playback tempo. The tempi were determined by firstly assigning each key a tempo in sequential order from 20bpm to 194bpm with a 2bpm difference, starting with 20bpm on the lowest key through to 194bpm on the highest (see table above). The order was then manually shuffled around like a deck of cards so that there was a relatively even spread of differing speeds and so that slower tempi were in the high register and faster tempi in the low register.I then listened back to all keys playing at once and then chose which notes to turn off, and determined what the temporal construction would be. The process was akin to beginning with a canvas of white noise and then deciding which spectra to take away, like a subtractive synthesis.

Hyperbodies are flexible structures. They are buildings and environments which can continuously change shape. The mutations of such architecture depend on the input coming from their user as well as from the surroundings of the building itself (the weather, people moving etc.). This interaction between user and building is determined by a data flow which the hyperbody uses and converts into a hypersurface structure, which then alters our perception of space in and around the hyperbody. (Oosterhuis, 2003). There is also the 'hyper brain / hyper body' theory developed by Karpinski, which states that an intelligent 'hyper brain' in constant need of stimulation, neural activity, and 'excitabilities' can led to a 'hyper body".

Work Details

Year: 2015

Instrumentation: Computer controlled, robotic piano.

Duration: 10 min.

First performance: 25 Oct 15. Phipps Hall, University of Huddersfield, UK

The composer notes the following styles, genres, influences, etc. on this work:
Conlon Nancarrow

Performances of this work

25 Oct 15: Phipps Hall, University of Huddersfield, UK

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