Ron Kuivila - Technoirama (obsessive/compulsive)
  Year :   2002
  Location :   England
  Worktype :   Composition
  Materials:   -
  Info :   Sonic Arts 24 Date: 30 April 2002 Time: 19:30 Location: School of Music, University of East Anglia Featuring Ron Kuivila and Jem Finer.

  Work Details  
  As the title suggests, this pair of studies intertwine the expansion and contraction of time structure (the concept of irama) with the perfect regularity of electronic pulse. Both are based on a pattern of controlled acceleration (shamelessly appropriated from Jim Tenneys Spectral Canon for Conlon Nancarrow) where a fixed duration is systematically subdivided in a logarithmic fashion. In this system, the duration of the first two events ([1,2]) is equal to that of the 2nd, 3rd, and 4th ([2,3,4]) events. This relation continues to arbitrarily fine subdivisions: [1,2] = [2,3,4] = [3,4,5,6] = [4,5,6,7,8] = [5,6,7,8,9,10] .... The precise length of a duration n is: (4/log(2) )*log(n+2/n+1) seconds. Subdivisions assemble into a steady structural duration (4 seconds in these pieces), but it is impossible to count the interrelation of the subdivisions themselves.. These two studies explore the feel of these subdivisions through the interaction of a performer with a computer generated audio track. (obsessive) In obsessive, a click track subdivides four seconds in to 2, 4, 8, 16, 32, 64, 128 and 512 pulses while a snare drum tries to keep up. The pattern of subidivision is: pulse track 2 4 8 16 32 64 128 256 snare drum - 2 4 8 16 8 4 2 (/) Following obsessive, there is a long glissando/deceleration that replays all of the subdivisions in order of increasing duration. These are routed through a set of filters to create the sound of a series of glottal stops. (compulsive) In compulsive, the process of acceleration through subdivision recurs, but it is slowed down by irregularly expanding time interval being subdivided. The performer plays the table with three distinct gestures loosely inspired by Mark Tansey s triptych, A Short History of Modernist Painting .