Psychedelic rock is a style of rock music that is inspired or influenced by psychedelic culture and attempts to replicate and enhance the mind-altering experiences of psychedelic drugs. It emerged during the mid 1960s among folk rock and blues rock bands in the United States and United Kingdom. It often used new recording techniques and effects that drew on non-Western sources such the ragas and drones of Indian music. Psychedelic rock bridged the transition from early blues and folk-based rock to progressive rock, glam rock, hard rock, and as a result, influenced the development of subgenres such as heavy metal. By the end of the 1960s decade, psychedelic rock was in retreat. LSD had been made illegal in the US and UK in 1966. At the end of
