Since spending so much time with the George Mitchell Collection, I've noticed that in Post-War field recordings, in particular, you occasionally encounter singers and players whose very few recorded performances make you wish they had had the opportunity to record at length. In the George Mitchell set, I felt this way in particular about John Lee Ziegler and William "Do-Boy" Diamond.
Another musician who has made an impression on me this way is the singer Amelia Johnson, who appears on the CD, "Big Joe Williams and Friends--Going Back To Crawford", Arhoolie CD 9015. Ms. Johnson does four songs on the CD, all accompanied by Big Joe: "Checkin' Out", My Last Girl--Don't Treat Her Wrong!", "Can't Listen No More" and "Don't Stay Long". Every one of the performances is spectacular; she sounds strong, serious, and has none of the commonly encountered "red hot mama" posturing. She has the unmistakeable sound of someone who means what she is saying, and that is where the rubber meets the road in terms of this kind of singing, I think. She sounded youngish at the time she was recorded, in 1971. She could be an exciting influence at an event like Port Townsend if she is still around and still singing.
Have any of you heard recorded performances by singers or players who may have done only a couple of tunes on tape, but who delivered such a powerful "tip of the iceberg" impression, that you are permanently left wanting more of their music? I would be interested in hearing about any such musicians.