Paolo Conte is a famous old-style Italian performer who writes and sings his own songs to the delight of signoras. He still performs in Europe often, but is less known in the states. In fact, a “best of” collection from 1998 was his first US release.
I received this song on a birthday CD and became an instant fan. I do hope you will to. Come Di might mean “as you say” or “marvelously” (based on an online Italian to English dictionary I just used) but I can't, with any certainty, tell you what the song is about – but it sounds like something really fun.