Maffei also wrote the lyrics to "Chetty's Lullaby", a song dedicated to Chet Baker's son.
"So che di perderò"" appeared on the soundtrack of the 1988 Academy Award-nominated documentary film Let's Get Lost.
He was convicted of drug smuggling and forgery and sentenced to a year, seven months, and ten days in a Lucca prison.
When he was released early, in December, 1961, RCA Italiana organized collaborative sessions with composer, arranger, and conductor Ennio Morricone.
In 1962, they recorded four of Chet Baker's own compositions that he wrote while incarcerated: "Chetty's Lullaby", "So che ti perderò", "Il mio domani", and "Motivo su raggio di luna".