The Union Pipes - it is a battle field. To begin back in the 60's when nobody gave a darn about them they were called the Uillean Pipes. Now everybody and their dog are claiming that 1 The instrument is not really Irish and 2 It not really called a Uillean Pipes. Hmmm I suppose in time the Chinese will adopt Bluegrass and the Russians Klesmer. Uillean is Gaelic for Elbow - the Uillean Pipes means Elbow Pipes as opposed to Bag Pipes which as we all know are blown from the mouth. I am no authority on the subject but do wish to point out that during the evolution of the instrument Ireland was changing it's language to English. Especially 16/17 hundreds. Every student of the Pipes calls it Uillean - those who do not have some political agenda - I can never tell what that is. BTW a Union Pipe is like the modern Uillean Pipes but lacks the Regulators. Hope that helps :)