Vashti Bunyan's story - from seminal Sixties folk chanteuse through three decades of self-imposed exile to triumphant revival - is the stuff of folk/rock mythology.

Vashti's first brush with fame came courtesy of Rolling Stones guru Andrew Loog Oldham and her Jagger/Richards-penned debut single Some Things Just Stick in Your Mind.

Though touted as "the next Marianne Faithfull", a disenchanted Vashti turned her back on her music career before it had even begun.

Instead, in 1968, she embarked on an epic two-year journey by horse-drawn carriage from London to the Isle of Skye, with hopes of joining a creative colony formed by folk icon Donovan.

The experience was the catalyst for a series of songs that would form her lone album Just Another Diamond Day, recorded in 1969 by legendary producer Joe Boyd, subject of another Festival exclusive with Robert Wyatt on May 27.

Following the album's release, Vashti retreated from the limelight once again, this time retiring to Ireland to raise a family.

Over the next 30 years, Just Another Diamond Day, though long out of print, began to gain cult status as a long-lost classic of the English folk canon.

Trumpeted by a raft of neo-folk admirers such as Devandra Barnhardt and Adem, it was finally re-released in 2000 to huge critical acclaim.

Following last year's stirring follow-up Lookaftering, released on Brighton label FatCat, and after headlining the Barbican's recent Folk Britannia season, Vashti's star is in the ascendant once more.

As she takes to the Brighton stage in a special Festival FatCat showcase alongside labelmates Tom Brosseau and Max Richter, let's hope this time she's here to stay.

Starts: 7.30pm. Tickets: £16.