Simon - I think you've got it wrong surely as I don't believe there's a friday afternoon session at Sweeps in the Good Intent. Don't you mean Sunday afternoon? The timetable looks like this I suspect :-

Friday 30/04/2010 from about 20:45 to close singaround/session with John Barden
Saturday 01/05/2010 from 12:30 to 14:30 (but it WILL continue, bet your boots) and 20:45 to close as above with John Barden.
Sunday 02/05/2010 from 12:30 to 14:30 singaround/session with Ruff & Reddy. 15:00 to 20:00 - floor spots and guests with Gastove. 20:45 to close singaround/ session with John Barden inclusing a few songs from festival guest Mike Nicholson.
Monday 03/05/2010 from 12:30 to falling over singaround/session with Ruff and Reddy.

John Barden