I always give the writer of the song or if it's a trad song, I try to give the source or where *I* first heard the song. For instance, I sing "Yon Green Valley". Since I first heard that song from Chris Coe, I give her credit and mention the record's name ("A Wiser Fool") where I heard the song.

I really believe in credit where credit is due, especially when I find gems like the example above.

Deb