“As their name suggests, this dozen-strong troupe is part global music big band, part European art project – the “almighty orchestra” honouring west African outfits, allied with the mischievous, radical spirit of Duchamp. Founded in 2006 by Geneva double bassist Vincent Bertholet, with roots in the city’s squat scene, Orchestre Tout Puissant Marcel Duchamp has retained its fluid international chara”