Greenspan points out that just because the Lomaxes are genetic matches with the Dolans, Mahers and Bolts, it doesn't necessarily indicate we are related in any meaningful sense. Our most recent common ancestor could be five, ten, 15 or as many as 60 generations back. All that is certain is that sometime after the year 200 AD, our ancestors were brothers.
But even so, it seems to me that there is some kind of "music gene" we all share. So I have to say I was satisfied, even though I wasn't all that exotic. I'm just a Celtic/Texan music man, and I'm happy with that.