The distiction between traditional singer and "revivalist" was useful back in the sixties or earlier when there were quite a few "traditional singers" still around. Today it's mainly the guys who sing in folk clubs and draw upon the accumulated heritage of tradition who can and should be described as the tradition. There is no strict definition which can distinguish these people from the older tradition and therefore no distinction to be made. It's time to claim the name for ourselves; we are now the traditional singers, we are the tradition.