One of the few great examples of how to make a song with tension in the melody made by chromatic evolvement.
Josef Myrow wrote the melodic lines in 1946. Mack Gordon added the friendly lyrics.
The most famous version is the one arranged by Quincy Jones and sung by Frank Sinatra and Charles Aznavour.
I did a transcription.
There are two versions: intermediate/advanced or easier/intermediate.
Please mail me if you want info on highest notes etc.