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Which choice best explains the function of the reference to acoustic recordings from the 1890s in the text?

For decades, performance scholars treated nineteenth-century musical treatises as faithful records of orchestral practice, inferring that conductors strictly maintained the metronomic tempos urged in print. However, recent signal-processing analyses of acoustic recordings from the 1890s have complicated this assumption by documenting pervasive, unnotated tempo fluctuations (rubato) that diverge markedly from the treatises' rigid strictures. Rather than prompting musicologists to discard the treatises as fabricated ideals, these auditory artifacts have spurred a reinterpretation of the written texts: the treatises were not descriptive accounts of prevailing norms, but prescriptive polemics meant to curb an existing, freewheeling performance tradition. Thus, the recordings illuminate the unwritten conventions against which the written rules were formulated.

Which choice best explains the function of the reference to acoustic recordings from the 1890s in the text?

Answer & explanation

Correct answer: B. It introduces empirical documentation of historical practice that leads scholars to reconsider the intended function of the treatises.

Correct answer B is supported because the passage explains that acoustic recordings from the 1890s provided direct evidence of widespread rubato that contradicted the literal rules in nineteenth-century treatises. However, instead of rendering the treatises useless, this discovery led scholars to reinterpret them as prescriptive reactions against those very performance liberties rather than descriptive records of standard practice; thus, the recordings serve to prompt a reevaluation of what the treatises were trying to achieve.

Choice A is incorrect because the author explicitly notes that scholars did not "discard the treatises as fabricated ideals," but rather found a new way to understand their historical value.

Choice C is incorrect because the recordings showed that conductors persistently diverged from the treatises, not that they adapted their playing to conform to them.

Choice D is incorrect because the author cites signal-processing analyses as a means of uncovering performance data, not to advocate that digital analysis should replace documentary research.

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Which choice best explains the function of the reference to acoustic recordings from the 1890s in the text?

Which choice best explains the function of the reference to acoustic recordings from the 1890s in the text?

Answer & explanation

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