The club was formed by Dave Jones and pays homage to his late wife Yvonne 'Vonnie', who died in 2001.
The club hosts acts from the field of Blues and Jazz music with events taking place on a Wednesday evening. The season lasts from September to June and sessions are held monthly.
Legends to have played at the club include Paul Jones of Manfred Mann, Long John Baldry and Chris Farlowe.
Since the first gig in November 2003 the monthly charity evenings have raised more than £50,000 with hop, skip and jump, Winston's Wish and Sue Ryder all benefiting.