Three Sentence Ficathon

Now and then when he's alone he sings, half-remembered hymns and creche songs and popular tunes from before the war got so bad that people stopped making music at all. The Matrix isn't picky - even Earth songs work in a pinch, when the night is deep and the distance from Cybertron is more felt than calculated, when the Matrix starts conjuring nightmares and reaching out for his followers. Perhaps, Optimus supposes, it just misses home.