1) Subculture 
drug-based popular music featuring various types of sound treatment, multi-texturing sound layers, and unusual forms. Pioneered by British and American bands in the late 1960`s
[n] - the subculture of users of psychedelic drugs
psychedelia Psychedelic articles or phenomena collectively; the subculture associated with psychedelic drugs.
noun the subculture of users of psychedelic drugs
the realm or artifacts of psychedelic drugs, art, writings, or the like.