Anonymous asked in Science & MathematicsPhysics · 7 days ago

A song starts with a note tuned to 220 Hz. What is the frequency of the perfect fourth above the given note?

Enter your answer as a whole number, like this: 300

1 Answer

  • 7 days ago
    Favorite Answer

    220 Hz corresponds to A3.  A 'perfect fourth' is the fourth spanning five semitones, which corresponds to D4.  D4 is 293.66 Hz. 


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