[2] While still a student, she was picked to front The Levee Breakers, a jug band featuring Mac McGann and Johnny Joyce, who played the folk circuit in south east England.
[2] In 1966 she released a single, "Happy New Year" (b-side "Where The Good Times Are"), written by Randy Newman,[2] on which she was accompanied by Jimmy Page, John Paul Jones, Nicky Hopkins and Andy White.
"Happy New Year" was chosen as the first single release on the brand new Deram label, distributed by Decca Records, in 1966,[2] catalogue number DM 101.
On the Simon & Garfunkel album Bookends, she contributed to the track "Fakin' It",[2] in the middle of which she is heard saying: "Good morning, Mr Leitch, have you had a busy day?"
In 2004, Martyn's song "Primrose Hill", about the simple joys of domesticity, which she wrote and sang on Road To Ruin, was sampled by Fat Boy Slim for the track "North West Three" on his 2004 album Palookaville.
On 3 December 2013, she performed the song "Levee Breaks" with her band at the concert 'A Celebration Of Bert Jansch' at London's Royal Festival Hall, alongside Robert Plant, Donovan and various members of Pentangle, amongst others.