As a regular Bromyarder I'm surprised at Folkiedave's suggestion that there's not much in the way of a fringe. If you take fringe to mean spontaneous events not officially organised by the festival there's plenty. There's nearly always something happening at the Rose and Lion, both in the back bar and outside (morris dancers permitting). The Bay Horse is usually inhabited by the bluegrass crowd (and very good they are too)and the Crown and Sceptre is usually packed with singers and musicians. The other pubs move in and out of favour but there's always somewhere to start something if what is happening elsewhere is not to your musical tastes.