When the subculture of psychedelia emerged in the early 1960s, the social movement influenced elements of music, visual arts, politics and literature for years to come.
A modern term derived from the use of hallucinogenic drugs like LSD and mescaline, psychedelia refers to altered states of perception featuring distorted sensual experiences like colorful visuals and heightened awareness.
From The Beatles to the funky, experimental bands of the 1970s and the free festival scene and neo-jam bands that followed, how was popular music shaped from the 1960s to the 1990s?
What aspects of psychedelia are active or resurging today?
Guest: William Echard, author of "Psychedelic Popular Music: A History Through Musical Topic Theory"