Roger Keith "Syd" Barrett (6 January 1946 – 7 July 2006) was an English singer, guitarist and songwriter who co-founded the rock band Pink Floyd in 1965. Until his departure in 1968, he was Pink Floyd's frontman and primary songwriter, known for his whimsical style of psychedelia and stream-of-consciousness writing style. As a guitarist, he was influential for his free-form playing and for employing effects such as dissonance, distortion, echo and feedback.