The band toured in support of "Quadrophenia" but immediately encountered difficulties playing the material live. To achieve the rich overdubbed sound of the album on stage, Townshend wanted Chris Stainton (who had played piano on some tracks) to join as a touring member. Daltrey objected to this and believed the Who's performances should only have the four core members. To obtain the required instrumentation without additional musicians, the group elected to employ taped backing tracks for live performance, as they had already done for "Baba O'Riley" and "Won't Get Fooled Again". Initial performances were plagued by malfunctioning equipment. Once the tapes started, the band had to play to them, which constrained their styles. Moon, in particular, found playing "Quadrophenia" difficult as he was forced to stick to a click track instead of watching the rest of the band. The group only allowed two days of rehearsals with the tapes before touring, one of which was abandoned after Daltrey punched Townshend following an argument.