ひとりぼっちのオルゴール (Hitoribocchi no Orgel)

Lonely Music Box is a song sung by Miku Hatsune with Luka Megurine, IA Akasaka, and Galaco doing the chorus. It is the two-hundred-and-twentieth track in Other Vocaloid Songs 5, the one-hundred-and-sixth track in Other Vocaloid Songs 9: Mostly Luka Volume 2, and the two-hundred-and-ninety-fourth track in Other Vocaloid Songs 19: Greatest Hits Of Miku Volume 3.