Talk:Collaborative songs/Duets/@comment-27155370-20151103113816/@comment-188.37.89.82-20151103114924

It is not a duet. To be one both need to sing equally. In Cantarella Kaito is the main singer, singing through all of the song, while Miku sings as background vocal in some parts of the song only. As such that song does not belong here. You will find it in the Songs Featuring Kaito page instead.