Notes & Corresponding Frequencies
| Middle C |
261.63 Hz |
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C# / Db |
277.18 Hz |
| D |
293.66 Hz |
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D# / Eb |
311.13 Hz |
| E |
329.63 Hz |
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| F |
349.23 Hz |
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F# / Gb |
369.99 Hz |
| G |
392.00 Hz |
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G# / Ab |
415.30 Hz |
| A |
440.00 Hz |
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A# / Bb |
466.16 Hz |
| B |
493.88 Hz |
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Ratio between notes is  . e.g. Multiply 261.63 Hz by to get 277.18 Hz.
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