Convulsif is a collective and band which originated in the year 2014, initiated by the bass player LOÏC GROBÉTY. After two conceptual CDs in crossover style- Jazz, Metal, Classic, Free –and changing collaborations of various artists and musicians, Convulsif started to concentrate to heavier sounds with a fixed line up. Convulsif became a quartet focusing to an enriched tension between composition and improvisation in powerful sounds and experiments at the limits of styles and musical languages. With its special and outstanding instrumentation – a classic rhythm section with Loïc Grobéty on bass and MAXIME HÄNSENBERGER on drums and a heavy amplified, treated violin & bass clarinet, played by JAMASP JHABVALA respectively CHRISTIAN MÜLLER – the band goes deep in the sound of the actual rock scene and mix different tendencies to a new unknown conglomerate: Doom, Drone, Black Metal and Noise are played with the means of conceptual improvisation and imposed themes. All coloured by a very uncommon instrumentation.