Inaugural festival of improvised, experimental and jazz-related musics organised by Jazzkollektiv Halle who are crowdfunding to boost their resources. With Antonio Borghini’s Banquet of Consequences, Silvia Tarozzi & Deborah Walker, Malacoda String Quartet, Dell/Lillinger/Westergaard, Pierre Borel, Saadet Türköz & Tobias Delius, Crutches and Olicia. Plus workshops and film screenings. Halle various venues, 18–21 September, various times and prices.