Exact Matching Concepts from Other Schemes
- found: Author's The swapping song book, 1952.
- found: New Grove dict. of Amer. mus. (Ritchie, Jean; b. 12-8-22, Viper, Crockett Co., KY; folksinger, songwriter, folksong collector, and dulcimer player)
- 1981-12-10: new
- 1996-04-04: revised