The melody of Love Song for No One by John Mayer runs 301 notes across 48 bars, 3:20 long in A at 132 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? Love Song for No One chords and lyrics.