RE: PoP 3 Music: I have - with the help of Adorno, Ermine, Flanged, Rejenorst - introduced a great deal of ambient sound to PoP 3, as well as replacing every single piece of Native music. Some of the music is free-use for non-commercial distribution, other music I personally paid to license, including a composition by the Witcher's composer. (Not music used in The Witcher.) Additionally, there are other equally famous composers' works in PoP 3. All will be revealed in its full glory when SD releases PoP 3. Until then, you'll just have to wait to find out more.
Edit: The guitar music is by Jon Sayles, a very fine classical guitarist who specializes in medieval music. He has a Web Page from which you can download his music - just google Jon Sayles+guitar.
Now, back to the original topic!