Bringing together 16 experimental musicians for three days of spontaneous sessions and one-off live shows, The Monheim Triennale created a charged space for collaboration, improvisation, boundary-pushing and play. The Monheim Triennale, much like the offside rule in football, is difficult to explain to those new to the game, so forgive this toe-punt: firstly, this year’s Triennale wasn’t really the main festival at all, but rather ‘The Prequel’.