Match the following.
1. an object's natural frequency of vibration determined by the physical qualities and dimensions of the object
2. a series of alternating reinforcements and cancellations produced by the interference of waves of different frequencies
3. a harmonious sound created by the interference of waves
4. the characteristics by which the ear distinguishes between sounds with the same frequency and amplitude
5. a discordant sound created by the interference of waves
6. the tendency of an object to vibrate at a maximum amplitude at specific frequencies resonance
7. multiples of the fundamental frequency that are produced by a musical instrument
a. beats
b. consonance
c. dissonance
d. harmonics
e. resonance
f. frequency
g. timbre