aesthetics D. a college textbook on music theory
8. According to the author, the timbre of a musical sound is dependent on
.
A. speed B. amplitude C. frequency D. overtones
9. According to the passage ultrasonic frequencies are
A. unhearable B. excessively C. characterized by a great amplitude D. less
than 20,000 Hz
Mach 5 or Mach 9?
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