The melody of Mercy, Mercy Me by Michael McDonald runs 184 notes across 69 bars, 2:54 long in E at 182 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? Mercy, Mercy Me chords and lyrics.