field recording, long pulse train (ultrasound, cannot be played directly), 5ºC, 3/8/1999 (Laar Bridge Box XL, cbt040s02r02)

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith