There is a class difference in accents here, alse. When some of my middle-class comrades go and speak to some working-class chaps, we are called posh simply be the way we speak.
There is a notable change in a few miles, here, also. Country-folk in the Carse of Gowrie speak different from the Urbanites in the City of Dundee.

Aberdonians all sound a bit strange. Be careful, they call women quains (or somesuch thing) and all sound like men...