QUESTIONS 48 – 55 REFER TO THE FOLLOWING PASSAGE. THE AUDIBLE FREQUENC...
2.
Most cultures, however, make use of the octave. An octave is an acoustic and scientific
relationship between two pitches, one of which vibrates twice as fast as the other and
thus sounds higher. How the octave is divided is unique to each culture. Remember that
this eight-part structure is unique to Western music. Other musical cultures do not
necessarily divide pitches within an octave the way we do. Not surprisingly, each culture
labels pitches differently. We name ours with seven letters –A, B, C, D, E, F, and G.
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International University – VNU-HCMC, Official handbook for the English Test, page 24