Henri Léon Marie-Thérèse Pousseur (French pronunciation: [ɑ̃ʁi leɔ̃ maʁi teʁɛz pusœʁ]; 23 June 1929 – 6 March 2009) was a Belgian classical composer, teacher, and music theorist.
[4][5] Generally regarded as a member of the Darmstadt School in the 1950s, Pousseur's music employs serialism, as well as mobile and aleatory forms, often mediating between or among seemingly irreconcilable styles, such as those of Schubert and Webern (Votre Faust).
From the 1960's, Pousseur sought to develop his own serial style (to allow 'tonal' harmonies), and this can be heard in his orchestral composition Couleurs croisées (1967),[6] which is based on the protest song "We Shall Overcome".
His electronic composition Scambi (Exchanges), realized at the Studio di Fonologia in Milan in 1957, is unusual in the tape-music medium because it is explicitly meant to be assembled in different ways before listening.
[7] Since 2004, the Scambi Project, directed by John Dack at the Lansdown Centre for Electronic Arts at Middlesex University, has focused on this work and its multiple possibilities for realization.