Alterations (featuring Beresford, Cusack, Day & Toop)
Alterations was one of the premier British improvising groups of the 1970s. Comprised of four omnivorous multi-instrumentalists - Steve Beresford, David Toop, Terry Day and Peter Cusack - they represented an important crossing zone between abstaction and pop, incorporating elements of punk, indigenous musics and hip-hop (Toop wrote the influential study Rap Attack, as well as his more recent book Ocean of Sound) into their free play.
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