永久に続く五線譜 (Towa ni Tsuzuku Gosenfu)

Background
This song has entered the Hall of Fame. It is featured in the album Dead Ball Project vol.1, and EXIT TUNES PRESENTS THE VERY BEST OF Deadball-P loves Hatsune Miku The song is about Miku trying to find out what is she singing for, and her mind is full of wonder about the existence of her singing. The things Miku thinks about of her singing's existence continues, thereby nicknaming it The "Endless Score".