Jazz pubs? Still around: Bull's Head in Barnes, Jagz at The Station in Ascot etc. etc. Lots of pubs round here (Berks/Surrey borders) seem to do live music at least once a week even if it is local metal bands so the problem may be local??
(and see skiffle/Donegan threads Oh-No)
RtS (who still has a pair of drainpipe jeans [but the waistband seems to have shrunk] but lost the sideboards/sideburns some years ago!)