Recording date: 12 February 2015

Time of day: 1.35pm

Location: Wishaw Walk footpath off Elvendon Road, north London.

Description: Constant hum from an electricity substation close by, birdsong, distant traffic, a car door slams in the mid-distance, a train rushes past on the line to the east.

Recorded by: IM Rawes

Technical guff: Headworn stereo. 2 x Shure WL-183 mics and Olympus LS-14 recorder.

Additional notes: Thanks to Paul Tourle.