Angus MacLise (1931-1979) was an American avant-garde musician, poet, and visual artist, known for his experimental contributions to the 1960s counterculture. Primarily associated with the genres of drone music and free improvisation, MacLise was a key figure in the New York City underground scene. He is best known for his work with the Velvet Underground, although he was never an official member; he contributed to their early performances and was instrumental in shaping their avant-garde sound. MacLise also collaborated with artists such as La Monte Young and the Theatre of Eternal Music, where he explored the intersection of sound and performance art. Notable works include his album "The Invasion of Thunderbolt Pagoda" (1973) and various recordings that emphasize the use of unconventional instruments and extended techniques. His poetry and visual art often paralleled his musical explorations, reflecting themes of mysticism and transcendence. MacLise's impact on music is significant, as he helped pave the way for later experimental and minimalist movements. His unique approach to sound and performance continues to influence contemporary artists in various genres, particularly within the realms of noise and drone music.