I have been a fan of the Icelandic band " Sigor Ros" for a few years now. In their documentary "Heima" (the best documentary I have ever seen by they way!!) they feature a quartet of artist called " Amiina". Four Icelandic girls that make the most beautiful music with strings, bells, and a saw, yes I said a saw. If you have never heard a saw played before it is like nothing you have ever heard. You may think it is a violin at first, but once you know you can hear the distinction, absolutely beautiful. The music is so soothing and relaxing. It helps me to relax.
Check them out as well as "Sigor Ros."