So it’s canon that Mordin sings Gilbert & Sullivan, specifically Pirates of Penzance.
Check out these lyrics from “Tarantara,” and tell me that Mordin wasn’t singing this under his breath the entire suicide mission.
"MABEL: Go, ye heroes, go to glory,
Though you die in combat gory,
Ye shall live in song and story.
Go to immortality!
Go to death, and go to slaughter;
Die, and every
With her tears your grave shall water.
Go, ye heroes, go and die!”