If you’re looking to explore Korean music other than K-pop and K-indie, the Korea Arts Management Service (KAMS) have the answer for you. They used to produce an annual compilation album of 5CDs featuring the best new recordings. But now they’ve made the CDs easier to access, via an iTunes app. The app, for iPhone and iPad, gives artist information and one or two tracks to listen to for each artist. And it’s free.
Search for Into the light – Music of Korea on iTunes (for some reason it’s easier to find on the web version of iTunes than from your desktop version, but it’s definitely there.)