Stewart loaded gear into his van, drove the group to gigs, replaced guitar strings and set up Watts' drums the way he himself would play them. "I never ever swore at him," Watts says, with rueful amazement. He also played piano and occasionally organ on most of the band's albums in the first decades, as well as providing criticism. Shortly after Stewart's death Mick Jagger said: "He really helped this band swing, on numbers like 'Honky Tonk Women' and loads of others. Stu was the one guy we tried to please. We wanted his approval when we were writing or rehearsing a song. We'd want him to like it."