Skidmarks (1981) for trombone and pre-recorded sound by Dan Senn
was composed in the Electronic Music Studios of the Canberra School of Music, Australia, in September
of 1981 and premiered October 4, 1981 by Simone de Haan. The pre-recorded sounds were made
using a Fairlight Computer Music Instrument and comprised of Mr. de Haan's extended technique
repertoire. The piece was composed using an early version of the Raku Composition Program,
composing software developed by the composer. Press play to hear Simone de Haan's
performance, and then scroll down through the graphic score.