Terry Reid on guitar. There are so many good versions of this Joni Mitchell song. I suppose the early Tom Rush is my favorite but it was also done by Dave Van Ronk, in fact it was the last song he ever played live. Tony Rice, Crosby, Stills and Nash, George Hamilton and Mary Black also took a turn with it. The little known Claire Hamill does an excellent job here. Sounds a bit like Sandy Denny.