Sound is produced on all brass instruments when

a. the player depresses one or more valves
b. air is blown through the instrument
c. the player's tongue moves
d. when the player's lip membranes vibrate as air passes between them
e. the player silently forms certain vowels inside the mouth while blowing

ANS: d.

Art & Culture

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The dominant element of Romantic music was

A. simple harmonic progressions. B. polyrhythmic motives. C. indistinguishable rhythms. D. singable, expressive melodies.

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