It depends on the club I suppose. Most audiences are quite open to different things if they're done well, and often quite tolerant and supportive even if they're not done well.

I wasn't around in the 60s, but from what I've heard it wasn't unusual to have people doing unaccompanied ballads, other people playing blues or ragtime, (Martin Carthy used to play Big Bill Broonzy for instance) and singer/songwriter types all to frequent the same club. Now you get places (sessions more than clubs, perhaps) where instruments are banned, and others where singing is banned. You get places where only Irish music is acceptable, or only English music is acceptable. You get 'old time' sessions where bluegrass is frowned on, and bluegrass sessions where 'old time' is frowned on.

When I was younger, I've been sneered at for playing an Irish tune in a bluegrass session, and sneered at more for playing a bluegrass tune in an Irish session.

However, I've seen an American bluegrass band playing a set of Irish tunes, and I've seen Irish fellers do American tunes, and nobody seemed to mind.

I'd suggest if it was an open mic (or open 'floor' for acoustic clubs), then I can't see anyone objecting to the sort of stuff you're suggesting, especially if you play it well. So long as you don't do something that goes on for twenty minutes, it'd be fine by me.

Bob Brozman says that the only reason musical 'genres' exist is because record companies invented them so they could organise their stock. Play whatever you like. Some people might not like certain things, but you can't like everything, can you?

I agree with Mandotim - as far as I'm concerned there's only really good and bad music. I play both kinds.