Alterations has been played on NTS shows including Doing Time , with Emus In The Zone first played on 13 January 2019.

Alterations was/is a chaotic and intensely creative British free improvisation quartet featuring Peter Cusack, Terry Day, David Toop, and Steve Beresford who were first in action together from 1977 to 1986. The group reunited and performed again in 2015 (Club Iklectic in London) and 2016 (Alterations Festival at Café Oto, London). Alterations' music was entirely freely improvised from start to finish, with each musician at freedom to destroy, derail or interrup what the others were constructing. Rarely would any group member stick to…