http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
collected and edited by Paul G. Brewster.
Some of the songs have unaccompanied melodies.
"References and abbreviations": pages 16-17. "Other works to which reference is made in the notes": pages 18-21.
Indiana University Folklore Institute monograph series ; no. 1