Voyager Homo Faber 1991 Film Saxophone Song?

There is a classic saxophone jazz theme in the movie Voyager (1991), played when Faber kiss Sabeth for the first time outside the ballroom. Is not in the soundtrack CD, so maybe someone knows what theme is. After kissing her, he ask her "do you want slow dance?" and the song play in the background.

Thanks for any help, I love that movie.