Luis Perez, educator, ceramist, and musician gives a brief history of Pre-Columbian musical instruments – wind and percussion, and shows the materials used in a demonstration of clay whistle construction. He explains the basic principles of sound and how symmetry and asymmetry is applied to the making of finger holes for sound production. He makes an acoustic chamber, creates an aperture for sound, the mouth piece, and the finger holes. He produces the sounds of a clay whistle using various types of finished whistles. Many examples are shown. Grades 6-12. DVD, 23 minutes.