Pierre Boulez ‎– Le Marteau Sans Maître #TurnaboutRecords 1964 Alto Flute – #SeverinoGazzelloni (tracks: A1 to A3, A5, B1 to B4) Alto Vocals – #JeanneDeroubaix (tracks: A3, A5, B1, B4) Conductor – #PierreBoulez Guitar – #AntonStingl (tracks: A1, A4, A5, B1, B2, B4) Painting [Cover Painting] – #GeorgesBraque Percussion – #JeanBatigne (tracks: A2, A4, B1, B3, B4) Vibraphone – #ClaudeRicou (tracks: A1, A4, B1 to B4) Viola – #SergeCollot (tracks: A1, A2, A4, A5, B1, B4) Xylophone [Xylorimba] – #GeorgesVanGucht (tracks: A2, A4, B1, B3, B4)