Psychedelic soul (sometimes called black rock or conflated with psychedelic funk) is a music genre that emerged in the late 1960s and saw black soul musicians embrace elements of psychedelic rock, including its production techniques, instrumentation, effects units (wah-wah pedal, phaser, etc.) and drug influences. It came to prominence in the late 1960s and continued into the 1970s, playing a major role in the development of funk and disco.