Swifts over Stoke Newington, swifts wheeling around the rooftops are a definitive summer sound and mark out spaces upwards and outwards in a way that few others do.
Listen
Taxis waiting at Euston Station, squeaky black taxi brakes
Listen
Tottenham Hotspurs football club, White Hart Lane (2:55), through the turnstiles at Spurs Football Club
Listen
Transformer, Putney (1:40), part of the underground's electricity supply; the hum varies in tone with the changing current drawn by passing trains.
Listen
Under the flyover, Hackney Wick (1:06)
Listen