The melody of Lean On by Major Lazer & DJ Snake Feat. MØ runs 357 notes across 32 bars, 2:31 long in Eb 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? Lean On chords and lyrics.