I've translated "Carne Vale" and "Stellarum Salve". Both are Latin; Carne Vale means Flesh Farewell and Stellarum Salve means Hello Stars. Any idea how they tie to Caliborn and Calliope?

You could argue about the duality- She’s Dead and he’s Alive, she’s a Space Player and he’s a Time One, so she gets the greeting, and him the Farewell, she gets the Stars and him the Flesh, connecting the duality of Body and Spirit.

But then it’s also just a pun. Carne Vale. Carnival. And then extrapolated to have Callie’s mean the opposite.