Pressure Waves - Radio Edit

The source of every sound is a vibrating body
 Take for example
 ♪
 The vibrating drum head pushes against the air every time it moves outward
 We call these pulses of compressions and rarefactions
 P-P-P-P-P-P-Pressure waves
 A drum
 ♪
 Each sound has a distinctive pitch, loudness, and quality
 Waves which your ears pick up and analyze
 But first let's investigate what causes sound
 ♪
 The source of every sound is a vibrating body
 Take for example
 A drum
 ♪
 The vibrating drum head pushes against the air every time it moves outward
 We call these pulses of compressions and rarefactions
 P-P-P-P-P-P-Pressure waves
 The vibrating drum head pushes against the air every time it moves outward
 We call these pulses of compressions and rarefactions
 P-P-P-P-P-P-Pressure waves