To my ear, Shirley Collins' speaking voice and singing voice are in essence the same voice, which she uses to sing in her own natural accent in a very unaffected way. I can, and frequently do, listen to her songs for an hour or more. The songs, replete with stories and folklore, are the point of her art. As for a singer's voice alienating someone, well that person must seriously want to be alienated otherwise why would they carry on listening!