The dual horn(sometimes three, plus flute)technique came to prominence with blind jazz player Rahsaan Roland Kirk…
He was a major influence on Ian Anderson of Jethro Tull. Another Brit who took up Kirk’s technique in the 60’s was Dick Heckstall-Smith, who played with a wide variety of people and bands…Graham Bond, Jack Bruce, John Mayall, Colosseum…
Kirk was at that particular gig as well…
Cool. I know others had done it before Jeff, but Jeff was the first person I ever saw do it. I was 20 at the time and there was no Youtube or much else to see historic performances, so it was pretty mind-blowing to see it live in front of me.