Traditional music, not so much: but a lot of quote-unquote "countercultural" figures were interviewed in this magazine. Years ago I was hunting for interviews with a movie star, who shall remain nameless, thanks anyway. Big deal.
And, going through Playboy Magazine interviews (must have been a book anthology), I stumbled upon Alex Haley interviewing Miles Davis.
Highly, highly recommended, that interview. It may have changed my life.