Talk:The Song that Resounds with Lu Li La, Lu Li La/@comment-206.53.152.0-20131014001743/@comment-16456175-20131023015650

To put it simply, Rin and Len are MotHY's favorite characters/vocaloids (they were the first ones he ever used). Any time they are used without being given an explicit role in the plot of the song, you can't be sure they're not being used as default singers for a bit that doesn't suit any one character. It doesn't help that MotHY uses them for nearly all songs without a known character singing it (The Frog and my Love Romance, Kept Waiting for a Response, nearly all of the clockwork lulliby series).