Hi Joanne, I think I may have just what you need. I found it through the San Francisco free folk fest page here:

http://www.marymclaughlin.com/irishbookdemo.html

Here is what they say: "A phonetic approach to singing in the Irish language, suitable for non-Irish speakers.

At last! A book and CD set that enables the non Gaelic speaker to learn songs which, until now, have been inaccessible without prior knowledge of the Irish language.

On the CD, Mary speaks each phrase slowly, leaving a pause for the student to imitate the pronunciation. Mary then sings each song in a simple, unaccompanied, plain style.

The book has the sheet music, guitar chords, phonetics, Irish lyrics, and a translation and background to each song. There is an introduction which gives information on traditional singing in Irish as well as a guide to the phonetic system used. The songs are graded linguistically and musically so that the student can build up skills as she/he progresses through the book. A must for anyone who has longed to sing in Gaelic but not had the opportunity to learn the Irish language. $17.95"

I think that is a great deal, and although I haven't used it myself, I'll probably buy it too:)

This is Mary Mc Laughlin of Celtic Voices fame and many other CD's. I hope this helps!