For the tune, you can hear the Andrews Sisters song at youtube: Oh Mama. There's also Dean Martin in Italian: Luna Mezzo Mare and some tenor singing Rossini La Danza, some of which you may recognise.

You can see some of the score at google books: Oh Mama! (The Butcher Boy). And there's information about these songs with various versions here: Looking for an Italian Song called The Butcher Boy in English

Mick