Kamran Sadeghi, New York-based musician and member of the Soundwalk Collective, contributed the musical score for Mario Pfeifer’s video installation Approximation in the digital age for a humanity condemned to disappear (2014). For his digital compositions Sadeghi, in dialogue with Pfeifer, took the field recordings made by missionary and anthropologist Martin Gusinde in 1923 of Yaghan chants in Bahia Mejillones as point of departure and reference.