Traditional Irish Group

Sheet Music - Kerry Polka and Johnny O'Learys 
Sound Files - Slow Set and Fast Set

Sheet Music - The Connachtmans Rambles  Slow  Fast 
Sheet Music - The Brides Favourites   Slow   Fast
Sound Files - Fast Jig Set

Sheet Music - Si Bheag Si Mhor  
Sound Files - Si Bheag Si Mhor

Sheet Music - The Harvest Home
Sound Files - The Harvest Home

Sheet Music - Going to the Well for Water
Sound Files - Going to the Well for Water

Resources for further exploration on your own :)
- The Session (http://www.thesession.org/), where you can search for tunes by name, view the ABC or sheet music, and save them in your own tunebook.
- Tunepal (http://tunepal.org/tunepal/index.php). If you have a tune (or part of one) that you don't know the name for, you can record it onto this site, and it searches the different tune sites on the internet and (hopefully!) finds the name for you.
- Norbeck's ABC tunes (http://www.norbeck.nu/abc/). This site has the tunes written only in ABC notation.