Here are links to a few web sites that are related to traditional Irish music in some way. This is by no means a well selected list. It is merely a few links that I happened to have already coded from the distant past so it was relatively easy to quickly make them available here. Later I may find time to refine this list and make it much more up-to-date and relevant.
Chiff & Fipple - One of the best web sites for information about traditional Irish tin whistles and flutes
Co. Champaign Irish Tune Collection Online - Three PDF files of music scores for some of the tunes that are often played at sessions in the Midwestern U.S. (especially Chapmaign, IL)
Flutility - Irish session tune recordings and other Irish flute resources
BestPractice A Windows OS open source program for slowing music without changing the pitch or for changing the pitch without changing the speed
Amazing Slow Downer - A computer program for slowing music without changing the pitch or changing the pitch without changing the speed (you have to pay for this program)
Audacity - A free audio recording and editing program that runs under Winows OS or MacOS that includes the ability to slow music without changing the pitch
Field recordings - Old venerable traditional Irish flute masters