Wikipedia
Syzygys
Syzygys is a band composed of duo Hitomi Shimizu on organ and Hiromi Nishida on violin. They play " microtonal pop music", specifically just intonation in the form of Harry Partch's 43-tone scale.
They have released albums on Tzadik Records, including Syzygys: Complete Studio Recordings (2003, Tzadik #7240).