The energy company xylophone

Cars (Autobahn) & trains (main station) accompany waving flags and clicking traffic lights, forming a natural xylophone. Here in front of the energy companies, the sound is still from the past decade. Recorded in Essen, Germany by Nils Mosh. 

Part of the Future Cities project - find out more at https://www.citiesandmemory.com/future-cities