[AcGold]

Pink Floyd was releasing pop songs nearly entirely generated by Syd and he was constantly being pressured to create music that would do well on the charts (e.g. Arnold Layne, See Emily Play). They were surprisingly successful in the pop charts while Syd was at the helm. He wanted to do avant garde groundbreaking kind of stuff that his label and bandmates resisted, ironically enough they ended up using some of these ideas on albums such as Dark Side of the Moon later on (e.g. female jazz singers and saxophone solos). He started taking acid in the late 60's while being told what kind of music he should be making, he resisted by often not playing the singles properly on stage and screwing around. This erratic behavior eventually led to his release from the band.