Speaking of Lancashire, lots of songs from up 'ere, paricularly if you're from 'up yon' (Oldham - 'Owdum')would'nt sound as good if not sang (sung?) in the local dialect or as they would be spoken. The Oldham Tinkers, great interpreters of local dialect song and verse, would sound a bit strange if they sang 'Owdum Edge' or 'a mon like thee' using queen's english. Some of Vin Garbutt's and Bob Fox's songs and interpretations sound particularly good cos of their North Eastern accents but if i was singing one of their songs i would'nt dare try and imitate their accents or dialect cos i'm not that good enough. Some people are good enough, so why not? Some songs are adaptable, some are'nt, like music in general - variation on theme etc.