The melody of U Don’t Have To Call by Usher runs 544 notes across 79 bars, 4:34 long in Db at 100 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? U Don’t Have To Call chords and lyrics.