Evolution of music

Ever wonder how we got to where we are...musically speaking?  Pentatonix shows us the evolution of music from the 11th century to today.  How many songs do you recognize?

If you're learning to play the piano, one of the first songs you learn is, "Twinkle, Twinkle, Little Star."  You probably won't learn to play it this way, though.  Scott Bradlee uses the song to trace the evolution of 24 popular styles from waltz to dubstep...