I’m Gonna Sit Right Down And Write Myself A Letter by Paul McCartney is in Eb at 125 beats per minute and runs 2:12 across 41 bars. It uses 29 chords — Dm7, Dbdim7, Cm7, N.C., Ab13, A13, Bb13, F13, and a few more. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? I’m Gonna Sit Right Down And Write Myself A Letter guitar melody tab.