Meinl Tuning Fork Sidereal TTF-E-SI
Meinl Tuning Fork Sidereal TTF-E-SI, Tuning Fork, Planets series, Description: Duration of an exact rotation of the earth around its own axis measured from a fixed star position, Position of the sun: 3rd planet, The orbital period in years: 1, The orbital period in days: 9460800, The orbital period in seconds: 8.17973 x 10 to the 11th power, Calculation of frequency: 1/86164.09054 sec = 0.0000116 Hz (0.0000116 Hz x 2) 2 to the power of 23 = 194.71 Hz, Frequency: 227.43 Hz (octave = 29), Tone: G3, Shifted standard tuning 440 Hz: A4/a ' = 437.11 Hz, Made in Germany
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