Yes, I've heard it (I own it). I thought it was very interesting. A very brave thing for Sting to do, considering his normal fan base. And, it is certainly more interesting than Paul McCartney's latest foray into the classical world.
According to the booklet note, it has to do with the design around the soundhole on the lute that is played on the disc. Part of the artistic design of the lute.What caught my eye was the "labyrinth". What does Sting mean by that? Is this a reference to the new age pagan practice that one increasingly finds in churches, retreat centers, etc.?
Or does he mean something completely different?