Absolutely, Stim, and if you wanna sing anywhere else other than the folk scene you should know some regular stuff that everybody can identify with. Quite a few of the folk singers I know have a decent repertoire of 'everyman' music, rock and roll, old standards, and they are quite at home in a WMC or a bar-room, or practically anywhere. They aren't topliners and couldn't survive on the meagre pickings of the folk-club circuit so they keep the wolves from the door in this way.

My idea of session heaven, mostly tune led, any tunes, folk etc with the occasional song, anything goes, that everbody can join in with vocally and instrumentally. Had some brilliant sessions like this.