You describe the letters they elongate, drop, clip etc... for example a Scottish accent can be described in terms of rolled "r"s and "l"s, the pronunciation of the "h" after the "w" in words like "what" and "which" where it is generally silent in other dialects, and a dozen other distinct phonological features.
Could you "evolve" it by slowly removing the accent throughout the story? Or would it pull you out of the book if every so often a word you spelled one way before, changed now. Say, character A is new to Scotland and barely understands Scottish. But then he resides there for years and every passing month keeps understanding it better and better.
In one series I read, there was a group of MCs, one of which had a thick Scottish accent. Late in the series, he's in a different part of the World/Universe and writes the main MC a letter. It's in perfect, unaccented English. The character even makes fun of the MC for thinking he'd write in the brogue.
A good Scottish accent brings images of bagpipes, kilts, and dramatically weathered cliffs to mind—but a bad one can make you look like a bogging bampot. The difference lies in the pronunciation, ...
MSN: Here are 23 of the best Scottish accents to appear on screen, from Robert Aramayo in I Swear to Jonny Lee Miller in Trainspotting
Here are the best Scottish accents from non-Scottish actors including Robert Aramayo in I Swear and Jonny Lee Miller in Trainspotting. If you’ve ever had the displeasure of hearing a terrible Scottish ...
Here are 23 of the best Scottish accents to appear on screen, from Robert Aramayo in I Swear to Jonny Lee Miller in Trainspotting