ÚNA BHÁN. Irish, Air (3/4 time). G Major. Standard tuning (fiddle). One part. Ó Canainn's air is associated with an old song that supposedly dates to Cromwellian times, attributed to Tomas Costello, the son of a family dispossessed by the English. James O'Bierne wrote an article on the song, printed in the New York Folklore Quarterly (vol. II, No. 4, November, 1946) . See also Marcus Mac Enery's article "Una Bahn;' in Eigse: A Journal of Irish Studies, IV, Part I1 (1943, pp. 133-146), and the discussion at Mudcat.org .
Source for notated version:
Hardebeck (Gems of Melody, Part Two), 1910; pp. 10–13.
Ó Canainn (Traditional Slow Airs of Ireland), 1995; No. 70, p. 62.