Leven started his musical career in the late 1960s under the pseudonym John St Field, and recorded one album, Control, in 1971 which was released only in Spain in 1973.

[3] He also collaborated with fellow ex-Doll by Doll members Joe Shaw and David Macintosh, plus ex-Sex Pistol Glen Matlock to release the single "Big Tears" under the band name Concrete Bulletproof Invisible.

This led him to form The Core Trust organisation, which favours a holistic approach to the treatment of heroin addiction.

We talked some more and we agreed that I could make records under a different name – that name is Sir Vincent Lone.Leven's next album, Lovers at the Gun Club was released in 2008; followed in 2009 by a third Sir Vincent Lone record (Troubadour Heart) plus four instalments of The Haunted Year under his own name: twofers of eight albums previously released through The Haunted Valley.

Gothic Road was released in 2010, followed in September 2011, two months before his death, by Leven's final studio album, Wayside Shrines and the Code of the Travelling Man, a collaboration with Michael Cosgrave.

Leven had been due to perform at the Green Hotel in Kinross for Mundell Music on Friday night 18 November.