Aww... I've fallen in love with the music box version of Kokoro recently :) I've always liked the song, always on the lookout for its variations and remixes, the piano version, duet version, Rin version, Len version, human version, vocaloid version, karaoke version, etc. and now I have the music box version!! Hahas... oh man if only I can find out where they make actual music boxes that can play this song hahas... Maybe it's because I know the lyrics of the original song... It's a little corny maybe... but it touches my heart. Here's what it sounds like