The melody of A Head Full Of Dreams by Coldplay runs 239 notes across 73 bars, 3:23 long in B at 122 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? A Head Full Of Dreams chords and lyrics.