A sweet sweet song of Diana Krall version in her 'The Look Of Love' album. The chords are slightly different in its Coda part but both main and Coda parts are great.
Please note that this song played by instruments is normally in key G. This vocal version actually starts with a verse in key G but the song part is sung in key Bb. After the song part, it's ending is again played in key G by strings. Unfortunately, the verse and the ending have to be omitted because the length becomes too long.

Love Letters (Diana Krall) - Young - Heyman