She also recorded a large number of BBC Radio and Peel sessions and toured regularly on the British college and festival circuit.

[3] Blessed with a "rich cello-like"[4] vocal style, she is also an accomplished guitar player who credits John Martyn and Michael Chapman as her "musical brothers".

[citation needed] Peel and Clive Selwood formed Dandelion initially to release St John's music.

St John's 1969 debut album for Dandelion, Ask Me No Questions, was produced by Peel and recorded in nine to ten hours.

In 1970, St John recorded a vocal duet with Kevin Ayers on "The Oyster and the Flying Fish" for his Shooting at the Moon release.

[8] This album was a significant step up from her debut, and contained string arrangements mostly by Geesin himself, particularly striking on the opening track "A Day A Way" and "Seagull- Sunday.

St John's adventurous fourth album Jumblequeen, released through Chrysalis Records in 1974,[8] garnered critical praise in Spare Rib.

[12] Aside from work under her own name, St John has recorded with Mike Oldfield on his albums Ommadawn (1975) and Amarok (1990), and with Kevin Ayers and Robin Frederick.