Part six of the 'Scarlet Heart: Ryeo' OST is out! And you're really going to want to hear this one.
The song "Can You Hear My Heart" is from Epik High, featuring Lee Hi. You might not expect rapping in a historical piece, but it don't matter, this song is gold! The instrumental is lovely and gentle with Lee Hi's soft, husky vocals singing in-between the raps.