You're right Jon. Here we have Sprowston, and I've heard 'Sprohston' and 'Spraouston' from the people who live there. It's just part of the rich variety of British life and language I suppose. I'm sure there are regional folk singers like Alan Smethurst from all parts of the UK, each with their own accent and dialect. I feel their recorded songs are a very valuable source of knowledge about local culture, language and issues affecting the ordinary people of that area. (I studied Linguistics and Phonetics as part of my Uni course, and I'm fascinated by all this!)