Ipek Gorgun's solo works are like choreographed chemical reactions on a micro scale or a terraforming planet on a macro scale. Here she reveals how silence, ontology and the physicality of sound influence her rich fusions of ambient and noise. Portrait by Nazli Erdemirel
On Olga Bell's new album Krai, the Brooklyn-based composer and singer explores the imagined hinterlands of her home country of Russia. She speaks with Ed Power about childhood memories, working with Dirty Projectors and why the album is a work of sonic fiction