Four weeks of new music, sound art, music theatre and discourse around Berlin. The collectively developed programme includes contemporary music for pipe organ by Éliane Radigue, Claire M Singer, Gamut Inc and others (12–14 September), Jack Quartet plays Helmut Lachenmann and others (24), site specific performance by Splitter Orchester & Sonoscopia in a former water reservoir (11 October) and an evening of improvised music with Kaja Draksler & Eve Risser and Fred Frith/Lotte Anker/Núria Andorrà (12). Berlin various venues, 13 September–12 October, various times and prices.