Why are some sound combinations pleasant when others sound like a cat with a screw loose? To find out, we'll make guitars out of shoeboxes, cut up a pizza, give Koolkatt a tune-up, and meet the original Otto Tune. Drum roll, please! It's going to be music to your ears. Viewers learn about how sound wave frequencies affect the pitch of notes and how the fractional relationship of different notes' frequencies affect how pleasant they sound when they are played together; how composers write music on a staff; whole, half, quarter and eighth notes and rests; how and why the thickness and length of guitar strings affect the pitch.