Field recording with a Sony Digital Audio tape corder TCD-D100, microphone Telinga EM-3, frequency range up to 24 kHz (sampling frequency 48 kHz) in darkness (starting 20:24 h, temperature 20°C); digitised with a Sony Linear PCM Recorder PCM-M10, sampling

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