The LOK Soundtrack genuinely has made me question my favorite genres of music. Its just that good. Whether it be the fusion of tradition Chinese instruments (erhu) with old-school jazz in Left My Heart in Republic City, or the melancholy and orchestric masterpiece in Greatest Change, everything about this soundtrack is perfect. My fav songs in order are (counting S2-4 songs too):

1: Greatest Change 2: The Legend of Korra End Credits 3: Service and Sacrifice 4: The Legend of Korra Theme (any version is great, including Jeremy Tai’s, Samuel Kim’s or Narratio’s) 5: Firebending Training 6: Left My Heart in Republic City 7: Fresh Air

tldr; LOK soundtrack is genuinely some of the greatesr music that Ive ever discovered, and thats mostly things to the beautiful sound of the erhu and Jeremy Zuckerman.