lab recording, 1/4/1991, 23.5°C (Sony WM-D3, QMC Mini bat detector at 25 kHz, tape: BASF-CMII, tape no. Th10/90:000-082)

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