Portal 2 OST - Turret Opera (Cara Mia, Addio) [With Correct Translation and Annotations]

[SPOILERS FOR PORTAL 2] I had seen a few videos showing the lyrics of this song, but they were all incorrect and had mistakes. Hopefully, this should rectify the situation! This is the pre-credits a-cappella soundtrack from Portal 2, "Turret Opera (Cara Mia, Addio)" with added translations, intended meanings, and annotations. --- Music by: Mike Morasky, Ellen McLain, Sebastian Wolff Label: A Cappella Records