The melody of Till There Was You by Meredith Willson runs 208 notes across 34 bars, 3:01 long in Ab at 90 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? Till There Was You chords and lyrics.