Cyril was born in Gosport,.
I believe, when he was a submariner he was based in plymouth, devon.
Brenda Wooton,was from Cornwall and popularised a lot of Cornish songs,Tony Rose was from Dorset,and was a tremendous singer who popularised a lot of west country songs,as of course did the Yetties.
Cyril was not revolutionary, neither is Seth.
If you want revolutionary music, investigate Leon Rosselson.