midi.txt

21 = 27.5 Hz              // A0, lowest note on piano
22 = 29.1352350948806 Hz
23 = 30.8677063285078 Hz

24 = 32.7031956625748 Hz  // C1
25 = 34.647828872109 Hz
26 = 36.7080959896759 Hz
27 = 38.8908729652601 Hz
28 = 41.2034446141087 Hz
29 = 43.6535289291255 Hz
30 = 46.2493028389543 Hz
31 = 48.9994294977187 Hz
32 = 51.9130871974931 Hz
33 = 55.0 Hz              // A1
34 = 58.2704701897612 Hz
35 = 61.7354126570155 Hz

36 = 65.4063913251497 Hz  // C2
37 = 69.295657744218 Hz
38 = 73.4161919793519 Hz
39 = 77.7817459305202 Hz
40 = 82.4068892282175 Hz
41 = 87.307057858251 Hz
42 = 92.4986056779086 Hz
43 = 97.9988589954373 Hz
44 = 103.826174394986 Hz
45 = 110.0 Hz             // A2
46 = 116.540940379522 Hz
47 = 123.470825314031 Hz

48 = 130.812782650299 Hz  // C3
49 = 138.591315488436 Hz
50 = 146.832383958704 Hz
51 = 155.56349186104 Hz
52 = 164.813778456435 Hz
53 = 174.614115716502 Hz
54 = 184.997211355817 Hz
55 = 195.997717990875 Hz
56 = 207.652348789973 Hz
57 = 220.0 Hz             // A3
58 = 233.081880759045 Hz
59 = 246.941650628062 Hz

60 = 261.625565300599 Hz  // C4, Middle C
61 = 277.182630976872 Hz
62 = 293.664767917408 Hz
63 = 311.126983722081 Hz
64 = 329.62755691287 Hz
65 = 349.228231433004 Hz
66 = 369.994422711634 Hz
67 = 391.995435981749 Hz
68 = 415.304697579945 Hz
69 = 440.0 Hz             // A4, reference note for standard pitch
70 = 466.16376151809 Hz
71 = 493.883301256124 Hz

72 = 523.251130601197 Hz  // C5
73 = 554.365261953744 Hz
74 = 587.329535834815 Hz
75 = 622.253967444162 Hz
76 = 659.25511382574 Hz
77 = 698.456462866008 Hz
78 = 739.988845423269 Hz
79 = 783.990871963499 Hz
80 = 830.60939515989 Hz
81 = 880.0 Hz             // A5
82 = 932.32752303618 Hz
83 = 987.766602512248 Hz

84 = 1046.50226120239 Hz  // C6
85 = 1108.73052390749 Hz
86 = 1174.65907166963 Hz
87 = 1244.50793488832 Hz
88 = 1318.51022765148 Hz
89 = 1396.91292573202 Hz
90 = 1479.97769084654 Hz
91 = 1567.981743927 Hz
92 = 1661.21879031978 Hz
93 = 1760.0 Hz            // A6
94 = 1864.65504607236 Hz
95 = 1975.5332050245 Hz

96 = 2093.00452240479 Hz  // C7
97 = 2217.46104781498 Hz
98 = 2349.31814333926 Hz
99 = 2489.01586977665 Hz
100 = 2637.02045530296 Hz
101 = 2793.82585146403 Hz
102 = 2959.95538169308 Hz
103 = 3135.96348785399 Hz
104 = 3322.43758063956 Hz
105 = 3520.0 Hz           // A7
106 = 3729.31009214472 Hz
107 = 3951.06641004899 Hz

108 = 4186.00904480958 Hz // C8, highest note on a standard piano