What are some scenes you think would have a musical number?

After the Homestuck animated pilot trailer came out, I saw people say it would be a musical because of vivzipops' involvement. I really doubt that, but it made me think. What scenes in Homestuck would have a musical number for it?

I think there would be a musical number for the lore explanation of the ancestors. There would probably also be a song for John when he's trying to get into the game before the meteor hits him. I can see it being super fast-paced n' stuff. I'm not good at explaining, lemme know what you guys think </3 X-PP