Meinl Therapy Tuning Fork “Mars” TTF-MA (144.72 Hz / D#3)

• Planets series
• Description: Duration of one orbit around the sun
• Position of the sun: 4th planet
• The orbital period in years: 1.88
• The orbital period in days: 686.9798
• The orbital period in seconds: 59355055
• Frequency calculation: 1/59355055 sec = 1.68478×10 to the power of -8 Hz (1.68478×10 to the power of -8 Hz x 2) 2 to the power of 32 = 144.72 Hz
• Frequency 144.72 Hz (octave = 33)
• Tone: D#3
• Shifted standard tuning 440 Hz: A4/a ‘ = 433.67 Hz
• Made in Germany

Handle material: cork