The melody of Life Is Wonderful by Jason Mraz runs 432 notes across 76 bars, 3:23 long in Am at 112 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? Life Is Wonderful chords and lyrics.