I'm not sure whether Dave was looking for sound recordings in his original post, though to my mind it is a bit much to listen to the same tune repeatedly. However I've looked in YouTube and been pleasantly surprised to find some classic recordings of the Boolavogue air there. I can't find any example of 'Youghal Harbour' other than the set dance tune of that name. I could only find a short soundclip of Gabriel McArdle singing 'Edward of Lough Erne Shore'.

Boolavogue and The Old Bog Road, played by Leo Rowsome on the uilleann pipes

Margaret Barry singing 'The Galway Shawl' and 'The Flower of Sweet Strabane (Thanks to Simon Doyle for this.)

Brendan Behan sings 'The Old Triangle from 30:57 in. He introduces the song by saying "This other song was written by a person who will never hear it recorded because he's not in possession of a gramophone; he's pretty much of a tramp."
This certainly backs the story of Dickie Shannon's authorship told by Tom Neary in this Mudcat thread Origins: The Old Triangle

Moreton Bay, performed by Martin Wyndham-Read and Iris Bishop. This video was recorded at the Conservative Club in Whitby in 2010, where the host is Ray Padgett.

Roisin White singing 'Omagh Town'

Frank Harte sings 'Muldoon, the Solid Man in a classic performance from 1999 in Boston.

Enjoy! But after listening to them all you'll probably never want to hear the tune again!

Matthew