Lisbon Troika protest reimagined by Joseph Connelly.
"Specific minute percussive sounds and pitches were sampled and arranged to create an initially sparse atmosphere that evolves as elements gather and intensify. A trumpet was also used to record different drones that layer and harmonize with one another, in addition to samples from the recording."
Part of the Protest and Politics project - find out more at http://www.citiesandmemory.com/protest