The melody of If The World Should End by Bono & The Edge runs 231 notes across 72 bars, 3:31 long in Gm at 92 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? If The World Should End chords and lyrics.