No interviews but some general information:

Seán was traditional musician in residence in Drogheda 2007-8, schools were involved. A booklet "Sing Out: Learn Traditional Song" issued and a website www.learntradsong.com was live but is no longer so - it may have been archived.
Seán was general editor of the Arts Council of NI Harvest Home series (2 cassette/booklet issues)
With Brendan Gunn, he presented a paper "I wish I could administer a modicum of Guiness to her ..." linguistic aspects of Irish folksongs in English. at the 22nd International Ballad Conference, Belfast June 29 0 July 3, 1992. This was published in an issue of Lore and Language (vol. 12, 1994) as "Images, Identities and Ideologies" edited by John Kirk and Colin Neilands. I may have a recording or Kirk & Neilands may.

Alan, if you know me, I may have more if you can scratch my brains a bit. Ring or email.