The melody of My Blood by Twenty One Pilots runs 410 notes across 76 bars, 3:31 long in Db at 109 beats per minute. The tab sits moving up the neck in places, 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? My Blood chords and lyrics.