Gillen (Gerard) (ed.), White (Harry) (ed.): Music and the church / edited by Gerard Gillen and Harry White.
IMS, 2. Blackrock, Co. Dublin: Irish Academic Press, 1993. 354 pp. (Irish musical studies, 2).
Ní Riain (Nóirín): The nature and classification of traditional religious songs in Irish, with a survey of printed and oral sources.
In Music and the church (1993), pp. 190–253.

Ó Madagáin (Breandán), Matheson (William) (ref.): Song for emotional release in the Gaelic tradition.
In Music and the church (1993), pp. 254–275.
On the lament in Irish. Incl. transcript of interview with the Rev. William Matheson on the subject of sung speech in the Scottish Gàidhealtachd. Previously publ. in Irish in LCC 22 (1992), pp. 164-184.