Meinl Tuning Fork Earth TF-E

Planet Tuning Fork

• Note: C#3
• Determination of frequency: Duration of one orbit around the sun (corresponds to the calendar year) OM tone, position from the sun: 3rd planet
• Orbital period in years: 1
• Orbital period in days: 365
• Round trip time in seconds: 31556925,9747
• Frequency calculation: 1 / 31556925,9747 sec = 3.1689 * 10^-8 Hz, (3.1689 * 10^-8 Hz x 2) 2^31 = 136.10 Hz
• Frequency: 136.10 Hz (32th octave)
• Shifted standard tuning 440 Hz: A4 / a' = 432.09 Hz
• Made in Germany