The act one finale of Sunday In The Park With George.
"Well, that was fun." in Fun Home.
"If -" in GC.
"What do you get?" in Company.
Musicals are built for grandiose cacophonies of sound but the best ones know when to use silence.

The biggest bit supporting this read is that Nona, either in dialog or narration, NEVER uses Tumblr-isms.