The note A tuned to 440 Hz only became the norm for musical performance in 1939 after decades of international and interdisciplinary disputes. Fanny Gribenski retraces this rocky path.

中文翻译：

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大量的球场

经过数十年的国际和跨学科争议之后，A调至440 Hz的音符直到1939年才成为音乐表演的规范。范妮·格里宾斯基（Fanny Gribenski）追溯了这条坎path的道路。