I was 15. 16 once the film and album came out. In the sixth form at school. A friend very kindly lent me the box set and I taped it (on a reel to reel tape recorder I had persuaded my parents would help me with my piano practice).
I think the music I liked best was Santana. TYA were boring, The Who were frightening, Hendrix didn’t thrill me, CSNY were out of tune. I recall really liking Country Joe and Joan Baez.
I loved the actual event though, the stage announcements, the ridiculous hippie talk of Arlo Guthrie (“I been rappin’ with the fuzz man”).