On Bert Lloyd, this sentence jumped out at me:

Perhaps for English society the most clearly defined of such groups are those attached to various basic industries: for example, miners with their special attitudes, customs, lore and language, song culture and such.

Lloyd uses miners as a strong example of the kind of contemporary 'folk' community he's proposing. But some of the criticism of Lloyd's work has attached specifically to the miners' songs he collected, or claimed to have collected. I haven't studied the CAYBM material, but we know The Recruited Collier" wasn't what he claimed it to be, & doubts have been raised over The Blackleg Miner. So I think it is reasonable to relate Lloyd's philosophy of contemporary folk back to the doubts over Lloyd's scholarship (which I seem to remember Dick challenging the last time we discussed this!).