FRAN SCOTT: And I'm Fran Scott. And this is the House Of Sound. FRAN: Well pin back your ears as you're about to find out with this little film I made. So Greg is over there having a little bit of ...

They explain that in order to make a sound, a brass player's lips must be made to vibrate very, very quickly. When placed against the mouthpiece of the instrument the air inside begins to vibrate ...