The melody of All Of Me by John Legend runs 408 notes across 70 bars, 4:04 long in Bbm at 126 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? All Of Me chords and lyrics.