During the tour in support of their "Tse" release, the quartet of Cyril Bondi on Shruti box, pipe & harmonica, Christoph Schiller on spinet & effects, Pierre-Yves Martel on Viola da Gamba, pipe & harmonica, and Angharad Davies on violin, captured this performance at London's Cafe OTO, improvised over a sequence of pitches with astonishing creativity.