Both the Irish and the Scottish share a rich history of fiddle music, and to the untrained eyes and ears it is often difficult to grasp the differences between the two types of fiddling. It's sort of like hearing one language but with two very distinct accents.
There are many tunes that you may think are Irish, which are in fact Scottish, and vice versa. This is due to centuries of intermingling between the two cultures. A perfect example of this is Mrs. McCloud’s Reel, which is popular in Ireland and thought by many to be an Irish reel, but in fact, it came from Scotland and was originally called Mrs. MacLeod’s Reel.