The Philip Glass Mishima string quartets by the Smith Quartet are pretty nice if you havent heard them. From the soundstrack to a film about Mishima, who was also being discussed on HN the other week
String Quartet No.3: "Mishima": "Blood Oath"
https://www.youtube.com/watch?v=IXf77yY8qVg
String Quartet No.3: "Mishima": "1957: Award Montage"