The open mic surgery at a upper Calder Valley pub will celebrate its 500th session on Sunday with an all day music festival.
There will be six hours of live music at the Stubbing Wharf, Hebden Bridge, from noon until 6pm to mark the occasion.
The open mic surgery has been running for nearly ten years every Wednesday night.
Over that time there have been performances from saw playing to a dulcimer.
Many local musicians have honed their skills in front of a friendly and supportive audience,
Performers who have attended the open mic surgery include Nic Chapman, Paul Weatherhead and Michael West.
The surgery has played host to the Rochdale Ranter, Play for Ale and Cayne White of goose and biscuit fame.
It has also seen a number of its younger performers move on to study music at university and turn their love of music into paid work.
Sessions are held weekly on Wednesday nights from 9pm until 11.30pm. All welcome.