The melody of That Sunday, That Summer by Nat "King" Cole runs 282 notes across 38 bars, 3:40 long in Ab at 75 beats per minute. The tab sits almost entirely in the first two frets, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? That Sunday, That Summer chords and lyrics.