midi_notes.c

/* Routine that generates frequencies for all 128 MIDI notes */

#include <stdio.h>
#include <math.h>

int main()
{
        float midi[127];
        int a = 440; // a is 440 hz...
        int x;
        for (x = 0; x < 128; ++x) {
                midi[x] = (a / 32.0) * pow(2, ((x - 9.0) / 12.0));
                printf("%f\n", midi[x]);
        }
        return 0;
}