Some Samples of Irish Music That are played literally every night in the pubs:
(Also might be covered by my traditional Irish band which might be forming when i buy a mandolin; more on that later)
This is Galway Girl; You might know it from the smash hit movie, Ps I love you. We've heard some great versions of this with completely different words, basically making fun of the movie. "Galway Hooker" is my favorite.
"Dirty Old Town" ; a great sing-along that is played once a night.
"Molly Malone" also a great sing along as you can tell from the video: