Another positive about his singing and his attitude to songs was that he believed words were important, rather than just sounds, there was and is imo an element of the uk folk revival who prefer to listen to sounds rather than words.
THAT IS WHY FOLK CLUBS RATHER THAN OPEN MICS ARE IMPORTANT
Peter was not middle of the road easy listening, but he had something to say and it was not the bland banalities of commercial pop and easy listening