Irish music has a distinct sound to it. Whether it's the high notes of the pipes, or the distinctive beat of bodhran (the traditional Irish drum), those with an ear for Irish music can identify it no matter what it's been mixed with.
The Traditional and The Non
Traditional Irish music, also called traditional Irish folk music, is easy to recognize. It tends to focus on vocals, and to use only a few instruments to provide music as a counterpoint. The subject matter of traditional Irish songs often includes old myths and legends from the Irish people as well, turning a simple song into a storytelling medium as well. Often confused with Celtic music (and sometimes mis-labeled as Celtic music) traditional Irish music's themes and sound are unique to the emerald isle.
Modern Irish Music
Non-traditional Irish music tends to keep the themes and rhythm of the folk music, but mixes it with other styles as well. Irish rock comes in a variety of flavors, including punk rock (with bands like the Dropkick Murphys), alternative, and even Irish metal music. Even when Irish music blends with other genres it's typically very recognizable because of the touch stones and sounds it keeps even when bringing in electric guitars and drum solos.
Listen to Irish Music Online
No matter what kind of Irish music you're looking for the place to find it is at hit-Tuner.net. This site is a portal to all the music one could ever wants, and nearly every genre someone can think of.