Although most of the song is a capella, it follows the same chord structure throughout. It has a syncopated rhythm where basically the chords change on the "and"s of 2, rather than on 3. Bb C Bb Ami Dmi 1 + 2 + 3 + 4 + 1 + 2 + 3 + 4 + The second B flat is really just a transition, but it sounds good. Enjoy! Any questions, email me at kingdork22@gmail.com