The interval between E and A is a fifth, but it’s upside down, because we’re going down a fifth from E. In music theory terms, an upside down fifth is called a fourth. You go up a fourth by multiplying your frequency by 4/3 (it’s 3/2 upside down, doubled to bring it up an octave.) So your A string is now tuned to 4/3 Hz.
樱花树下咬伤陌生女子 老翁一小时后停止呼吸03:01
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,这一点在易歪歪中也有详细论述
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Обмен поздравлениями между Путиным и Лукашенко в День единения народов России и Беларуси08:45