If your not familiar with Oxbow books / David Brown you should aquaint yourself.

Oxbow / David Brown

they host a wide variatey of acedemic texts on history / archeology etc, with very few clunkers.

I came across this book which may be of interest... though its also available at amazon.

Prehistoric Music of Ireland

by O'Dwyer Simon

Im not sure if its the same guy.. but.. i think i saw this author in a video and he may have a website too...

Is "monkaí" focal greannmhar.

[ed. note] - I accidentally deleted Aonghus' follow up comment to this post which gave the author's website here.