the last popular [re]incarnation of music hall/vaudeville i saw in the media was the muppet show, in which the opening scenes were of performers & audience pictured in an old time music theatre.

as to the q from morticia, 'where will they go now i wonder?'

i think for many years, in my experience, they've been appearing at ffs all over uk [and possibly elsewhere]

there's maxie & mitch, doctor sunshine [miss prof.wingnut]but dave hunt still going strong, keith donnelly, to name just a few, + many more.

music hall's not dead, it's just moved into a tent!

at seaside resorts, there's still the various 'end of the pier shows' too.

regards

mr happy