'Molly's Song 3 - Shades of Crimson' by Rebecca Saunders.

Extract from the score for Molly's Song 3 - Shades of Crimson by Rebecca Saunders. A piece for guitar, viola and alto flute with 4 radios and music boxes.
From the notes in the score:
“Radios performed by the flute and guitar players.
4 radios tuned differently:
1 and 3: white noise
2: white noise and indistinct speech
4: very high and moving frequencies
as diverse as possible. quality of radios not important.
loud but not painful. turn on (sub. F) and off together exactly”.