title: points...
type: electroacoustic composition for acoustic guitar and motion capture system
year: 2012
author/composer: Alexandros Kontogeorgakopoulos
funded by: Funded by funded by University of Wales Institute Cardiff Research & Enterprise Investment Fund (Multi-coloured Musical Magic Project)
Points is composition for acoustic guitar and live electronics. Motion-tracking technology transforms the space into an interactive sonic environment. A performer improvises with the guitar while walking around the space and the music is altered and played back according to their position in space. The space in this interactive work has only one, non-physical constraint which is marked on a map/stage plan forming the graphic score of the piece (picture above). This indeterminate notion gives the freedom to the performers to interpret freely the composition by having only spatial constraints given in the graphic score.
The following video demonstrates an improvised performance captured during the development of the composition.
More info about the aesthetics and the technological aspects of the work can be found in the Journal paper My Content / My Space / My Music Organised Sound Journal Vol18 (1).