1968, Pink Floyd announced founder Syd Barrett had officially left the group. Barrett was suffering from psychiatric disorders compounded by drug use. 1968, Simon and Garfunkel went to number one on the US album chart with the soundtrack of Mike Nichols' movie The Graduate, starring Dustin Hoffman and Anne Bancroft. The film boosted the profile of the folk-rock duo and on … [Read more...] about Today in Rock History – April 6