Joe, I have this: THE ITALIAN SONGBOOK - Hansen House - 1820 West Ave. Miami Beach- Florida 33139-9913, ISBN 0-8494-2232-9 including Ah, Marie, Catena, Core n'grato, Funiculi Funicula, Marechiare, Mattinata, O Sole Mio, Vesti La Giubba and many others. If you can't obtain it locally, let me know and I'll contact some pirates friends of mine.
Unfortunately Mamma is not included in this book.If you need some help on Italian or Spanish or Portuguese phonetics, please tell me.
Un abrazo - Andrés