Not sure from the short amazon clip. But it sounds like the song 'Tears Over Shetland' by Matthew Lien, Bleeding Wolves album.
An unknown new age artist, who would be in the company of David Arkenstone, Yanni, Kitaro.
I don't think that's the song but you named a few great artists that fly under the radar. I am gonna have to get some of their stuff anyways. Did a little searching on each artist you mentioned and still couldn't find that song name. I think I am gonna send the guy a PM and see if he will divulge the information.
Appreciate the effort!!!