MIDI notes and frequencies
The following table shows the musical pitch and frequency associated with each MIDI note.
A5 is 440 Hz, and middle C is C5 at 261.63 Hz. These values can differ, often by one octave, from values used by other manufacturers. The following frequencies are based on equal temperament tuning.
Pitch | MIDI Key | Frequency |
| Pitch | MIDI Key | Frequency |
| Pitch | MIDI Key | Frequency |
C0 | 0 | 8.176 |
| G3 | 43 | 97.998 |
| D7 | 86 | 1174.7 |
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1 | 8.662 |
| G#3 | 44 | 103.82 |
| D#7 | 87 | 1244.5 | |
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D0 | 2 | 9.177 |
| A3 | 45 | 110.00 |
| E7 | 88 | 1318.5 |
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D#0 | 3 | 9.723 |
| A#3 | 46 | 116.54 |
| F7 | 89 | 1396.9 |
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E0 | 4 | 10.301 |
| B3 | 47 | 123.47 |
| F#7 | 90 | 1480.0 |
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F0 | 5 | 10.913 |
| C4 | 48 | 130.81 |
| G7 | 91 | 1568.0 |
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F#0 | 6 | 11.562 |
| C#4 | 49 | 138.59 |
| G#7 | 92 | 1661.2 |
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G0 | 7 | 12.250 |
| D4 | 50 | 146.83 |
| A7 | 93 | 1760.0 |
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G#0 | 8 | 12.978 |
| D#4 | 51 | 155.56 |
| A#7 | 94 | 1864.7 |
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A0 | 9 | 13.750 |
| E4 | 52 | 164.81 |
| B7 | 95 | 1975.5 |
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A#0 | 10 | 14.568 |
| F4 | 53 | 174.61 |
| C8 | 96 | 2093.0 |
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B0 | 11 | 15.434 |
| F#4 | 54 | 184.99 |
| C#8 | 97 | 2217.5 |
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C1 | 12 | 16.352 |
| G4 | 55 | 195.99 |
| D8 | 98 | 2349.3 |
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C#1 | 13 | 17.324 |
| G#4 | 56 | 207.65 |
| D#8 | 99 | 2489.0 |
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D1 | 14 | 18.354 |
| A4 | 57 | 220.00 |
| E8 | 100 | 2637.0 |
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D#1 | 15 | 19.445 |
| A#4 | 58 | 233.08 |
| F8 | 101 | 2793.8 |
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E1 | 16 | 20.601 |
| B4 | 59 | 246.94 |
| F#8 | 102 | 2960.0 |
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F1 | 17 | 21.826 |
| C5 | 60 | 261.63 |
| G8 | 103 | 3136.0 |
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F#1 | 18 | 23.124 |
| C#5 | 61 | 277.18 |
| G#8 | 104 | 3322.4 |
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G1 | 19 | 24.499 |
| D5 | 62 | 293.66 |
| A8 | 105 | 3520.0 |
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G#1 | 20 | 25.956 |
| D#5 | 63 | 311.13 |
| A#8 | 106 | 3729.3 |
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A1 | 21 | 27.500 |
| E5 | 64 | 329.63 |
| B8 | 107 | 3951.1 |
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A#1 | 22 | 29.135 |
| F5 | 65 | 349.23 |
| C9 | 108 | 4186.0 |
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B1 | 23 | 30.867 |
| F#5 | 66 | 369.99 |
| C#9 | 109 | 4434.9 |
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C2 | 24 | 32.703 |
| G5 | 67 | 391.99 |
| D9 | 110 | 4698.6 |
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C#2 | 25 | 34.648 |
| G#5 | 68 | 415.31 |
| D#9 | 111 | 4978.0 |
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D2 | 26 | 36.708 |
| A5 | 69 | 440.00 |
| E9 | 112 | 5274.0 |
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D#2 | 27 | 38.890 |
| A#5 | 70 | 466.16 |
| F9 | 113 | 5587.7 |
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E2 | 28 | 41.203 |
| B5 | 71 | 439.88 |
| F#9 | 114 | 5919.9 |
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F2 | 29 | 43.653 |
| C6 | 72 | 523.25 |
| G9 | 115 | 6271.9 |
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F#2 | 30 | 46.249 |
| C#6 | 73 | 554.37 |
| G#9 | 116 | 6644.9 |
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G2 | 31 | 48.999 |
| D6 | 74 | 587.33 |
| A9 | 117 | 7040.0 |
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G#2 | 32 | 51.913 |
| D#6 | 75 | 622.25 |
| A#9 | 118 | 7458.6 |
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A2 | 33 | 55.000 |
| E6 | 76 | 659.26 |
| B9 | 119 | 7902.1 |
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A#2 | 34 | 58.270 |
| F6 | 77 | 698.46 |
| C10 | 120 | 8372.0 |
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B2 | 35 | 61.735 |
| F#6 | 78 | 739.99 |
| C#10 | 121 | 8869.8 |
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C3 | 36 | 65.406 |
| G6 | 79 | 783.99 |
| D10 | 122 | 9397.3 |
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C#3 | 37 | 69.295 |
| G#6 | 80 | 830.61 |
| D#10 | 123 | 9956.1 |
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D3 | 38 | 73.416 |
| A6 | 81 | 880.00 |
| E10 | 124 | 10548.1 |
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D#3 | 39 | 77.781 |
| A#6 | 82 | 932.32 |
| F10 | 125 | 11175.3 |
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E3 | 40 | 82.406 |
| B6 | 83 | 987.77 |
| F#10 | 126 | 11839.8 |
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F3 | 41 | 87.307 |
| C7 | 84 | 1046.5 |
| G10 | 127 | 12543.9 |
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F#3 | 42 | 92.499 |
| C#7 | 85 | 1108.7 |
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220 CHAPTER 12