whenever I ask students on the Folk Music course at Newcastle Uni they always know about the Byker session. Cumberland Arms seems to be THE music venue in that area see this listing.
My link to Banjo Bill doesn't work. however Banjo Bill seems to have moved without telling people. Banjo Bill now
& I found this Banjo Holler (bluegrass), there may be contacts within.
Jazz Cafe says it has a Folk Club but damned if I can see it. Best to ask.