I think that was some years ago Mr Red. They are 5 voices singing a range of stuff - their blurb says (copied from a flyer I picked up at a gig):

"Rapsquillion has a hard-won reputation for building gradually to a climax throughout a performance; the band's invigorating music, an eclectic mix of traditional songs, non-conformist hymns, parody and contemporary, is at its impressive best towards the 'witching' hour, when, bellies bloated and all cares and sheets to the wind they tear off their inhibitions and display their crinkled credentials to the world."

They seem to be based in South Shropshire although I think one of their number, Linda, is well known on the scene in the Telford area. And didn't Chris Vowles used to do something on Genevieve Tudor's Sunday Folk show?