The melody of One And Only by Adele runs 525 notes across 45 bars, 5:08 long in Bb at 86 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? One And Only chords and lyrics.