I am not a huge fan of Celtic music, and yet I consider myself among the affected population. Jigs and reels all sound the same to me. Yet, the first time I heard a bombarde (a shaum-type instrument that sounds a hell of a lot like a bagpipe) it was like I was following the pied piper, and the sound of the fiddle can put me into raptures. The only instruments that have ever "spoken" to me (I've fallen in love with their sounds and playing them has been instinctual) are "Celtic" instruments. Anyone who knows what a bombarde is will say I'm full of shit, because it's an Arab instrument that found its way to Brittany in the 12th century, but it sounds like a bagpipe and the fingering is that of a pennywhistle.
I wonder about the genetic memory; I know my family's origins are in Wales, England and Scotland...and France (lol).
I was raised in the tradition of American and British maritime music, and Celtic music was never big in our house, so I know I can't blame this on my parents.