Complex sentence: Chris Hillman, who played bass guitar with the Byrds, saw the Beau Brummels at a Los Angeles concert, and later remarked: I remember them doing the hit they had,' Laugh, Laugh.
Split into simpler sentences: Chris Hillman, who played bass guitar with the Byrds, had seen the Beau Brummels at a Los Angeles concert. Hillman remarked: I remember them doing the hit they had,' Laugh, Laugh.