The melody of Harder To Breathe by Maroon 5 runs 445 notes across 53 bars, 3:25 long in E at 100 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? Harder To Breathe chords and lyrics.