I stumbled upon this the other day. Totally not my thing but, well, Maddy Prior. In the comments someone says her voice is like a laser.
Mrs S and I are followers of Go West. I've probably seen them live more than any other band. Peter Cox has the most remarkable quality about his voice, especially live. Aided, I suspect, by the fact that he reaches the high notes using his eyebrows. This is one of their lesser known tunes, a far cry from the vest and monkey wrench early stuff.