How do I play the haunting song?
Solution 1:
The correct sequence is:
•↑→•↓•↓→
(That means hit Z, Z-Up, Z-right, Z, Z-down, Z, Z-down, Z-right.)
Solution 2:
Actually, it gives you the answer if you wait, in a dialog text with the statue. The only thing you need to do is memorize that.
EDIT: Turns out you don't have to be in dialog.