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Frequency is in Hertz(Hz)- Musical Notes from 4Hz to 33kHz
Oct. C# / Db D D# / Eb E F F# / Gb G G# /Ab A A# / Bb B C Oct.
-2 2.165 2.294 2.430 2.575 2.728 2.890 3.062 3.244 3.437 3.646 3.858 4.088 -2
-1 4.331 4.588 4.861 5.150 5.456 5.781 6.125 6.489 6.875 7.293 7.717 8.176 -1
0 8.662 9.177 9.723 10.301 10.913 11.562 12.250 12.978 13.750 14.586 15.434 16.352 0
1 17.324 18.354 19.445 20.602 21.827 23.125 24.500 25.957 27.500 29.135 30.868 32.703 1
2 34.648 36.708 38.891 41.203 43.654 46.249 48.999 51.913 55.000 58.270 61.735 65.406 2
3 69.296 73.416 77.782 82.407 87.307 92.499 97.999 103.862 110.000 116.541 123.471 130.813 3
4 138.591 146.832 155.563 164.814 174.614 184.997 195.998 207.652 220.000 233.082 246.942 261.626 4
5 277.183 293.665 311.127 329.628 349.228 369.994 391.995 415.305 440.000 466.164 493.883 523.251 5
6 554.365 587.330 622.254 659.255 698.456 739.989 783.991 830.609 880.000 932.328 987.767 1046.502 6
7 1,108.731 1,174.659 1,244.508 1,318.510 1,396.913 1,479.978 1,567.982 1,661.219 1,760.000 1,864.655 1,975.533 2,093.005 7
8 2,217.461 2,349.318 2,489.016 2,637.020 2,793.826 2,959.955 3,135.963 3,322.438 3,520.000 3,729.310 3,951.066 4,186.009 8
9 4,434.922 4,698.636 4,978.032 5,274.041 5,587.652 5,919.911 6,271.927 6,644.875 7,040.000 7,458.620 7,902.133 8,372.018 9
10 8,869.844 9,397.273 9,956.063 10,548.082 11,175.303 11,839.822 12,543.854 13,289.750 14,080.000 14,917.240 15,804.266 16,744.036 10
11 17,739.688 18,794.546 19,915.126 21,096.164 22,350.606 23,679.644 25,087.708 26,579.500 28,160.000 29,834.480 31,608.532 33,488.072 11
These General Midi Instruments produce a modulated:
Sine wave ~~~~~ Ocarina (79)
Square wave -_-_- Lead 1 (80)
Sawtooth wave /\/\ Lead 2 (81)

Music programs can limit notes to a range of: Db(0) 8.6Hz to G(10) 12.5kHz
For Notes below 8hz use the "Drum Kit" or "Percussion" instruments.
For notes above 12.5kHz use a dedicated signal generator.

.. ..

Also using a Midi interface / Card to generate reference tones is possible by "pitch bending" the appropriate note(s)
e.g. "C" at the 6th octave is 1046.502Hz, this can be "pitch wheeled" bent down to ~1000Hz (1kHz) 1000.399hz.

/mus-freq.html of 9294 bytes.
Updated: 2016 Wed May.18
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