User blog comment:TheJudicialDoll/New Mothy Song - "White Brick and Black Mourning Dress"/@comment-72.193.178.203-20151111111914/@comment-146.113.74.251-20151111161501

Cheribum's mother killed herself because her child was hideous and it caused her too much grief to bear living with herself. In this song the girl states that that one child was her only happiness. I'm also pretty sure she was nobility whereas this girl had no money, not even a place to sleep.

And usually, if a character dies after they stop singing, the song will actually mention that they died or imply it in the lyrics somehow. It's not assumed just by virtue of them not singing anymore.