Clam Chowder were amateurs but gifted amateurs, doing harmony from several traditions.
Maddie Pryor and June Tabor harmonized on two collections. "Silver Whistle" is something pretty special.
Now, I danced in the 1980 Pittsburgh Folk Festival, which also featured a Ukrainian Choir, that was pretty wonderful. My mother was very impressed. My father, who had been in Ukraine during the war was not. "Hmmmph," he said. "Any group of Ukrainians could do that."