People have been playing music on homemade instruments for thousands of
years. But creating new instruments is much more than an art form. When
you want to make a note sound higher or lower, you have to change the
sound waves coming out of the instrument. That's science! When you
explore the way different materials produce different sounds, that's
engineering. When you speed up or slow down a song, you're counting
beats -- using math. And technology makes electronic instruments and
devices to record and play back music possible.