The melody of That’s Christmas To Me by Pentatonix runs 374 notes across 56 bars, 2:59 long in Cb at 84 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? That’s Christmas To Me chords and lyrics.