England has heavily inflected accents and lots of them in a small area. It's hard to believe those word emphasis patterns haven't insinuated themselves into songs in ways beyond the superficial. Accents are more than diphthongs and vowel clusters but a way of looking at the world, imo. There's no proof of course but it's impossible to listen to a Geordie or Norfolk singer without summoning up the general cultural and physical space they inhabit.

Instrumentation is at one remove but solo singer-players tend to perform with punctuation that invites comparison with speech. I'll have to dig through the collection to find some examples.