最終更新日：2025/11/29
The conservatory installed an aeolian attachment on the antique pianoforte so that a directed stream of air against the strings would prolong their vibrations and increase the instrument's volume.
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The conservatory installed an aeolian attachment on the antique pianoforte so that a directed stream of air against the strings would prolong their vibrations and increase the instrument's volume.
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