psychedelic rock

psychedelic rock, style of rock music popular in the late 1960s that was largely inspired by hallucinogens, or so-called “mind-expanding” drugs such as marijuana and LSD (lysergic acid diethylamide; “acid”), and that reflected drug-induced states through the use of feedback, electronics, and intense volume. Emerging in 1966, psychedelic rock became the soundtrack of the wider cultural exploration of the hippie movement. Initially centred on the West Coast of the United States, where the early Grateful...