The melody of 7 Years by Lukas Graham runs 547 notes across 45 bars, 3:52 long in Eb at 60 beats per minute. The tab sits low on the neck, mostly under the fourth fret, 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? 7 Years chords and lyrics.