constant interchange of the most various kinds is for a small ensemble of at least three players, each of whom has six sound sources: a field recording played back through headphones laid on the table, a spoken text which relates to the recording, an object which also relates to the recording moved across the table, breath noise, singing and whistling. All of these sounds are played back at minimal volume in order to destabilise them and draw them closer together, rendering them indistinct. The players then must balance the sounds between them, such that only one of each is present at any one time. The title is taken from A.G. Tansley’s 1935 definition of an ecosystem, the first use of this term.

Commissioned by CoMA for the Partsong Book, and first performed at the 2016 CoMA Summer School.

Score preview below or download from the scores page.