I don't know why, but this is a piano arrangement of Erlkönig, what is treated as a great hard piano music in Korea. There are a lot of people who can't even challenge Erlkönig because of the tremendous number of chords in the original and lizst arrangement. Difficulty has been dramatically lowered by replacing the chord repeat with a single note repeat and arranging the chord with a melody voice. Even so, I couldn't completely remove repeat, which is the identity of this song, so I left it as it is.
