Note:  C  N:  -9 Frequency: 261.625565
Note:  D  N:  -7 Frequency: 293.664768
Note:  E  N:  -5 Frequency: 329.627557
Note:  F  N:  -4 Frequency: 349.228231
Note:  G  N:  -2 Frequency: 391.995436
Note:  A  N:   0 Frequency: 440.000000
Note:  B  N:   2 Frequency: 493.883301
Note:  C  N:   3 Frequency: 523.251131
Note:  D  N:   5 Frequency: 587.329536
Note:  E  N:   7 Frequency: 659.255114
Note:  F  N:   8 Frequency: 698.456463
Note:  G  N:  10 Frequency: 783.990872
Note:  A  N:  12 Frequency: 880.000000
Note:  B  N:  14 Frequency: 987.766603
Note:  C  N:  15 Frequency: 1046.502261
Note:  D  N:  17 Frequency: 1174.659072
Note:  E  N:  19 Frequency: 1318.510228
Note:  F  N:  20 Frequency: 1396.912926
Note:  G  N:  22 Frequency: 1567.981744
Note:  A  N:  24 Frequency: 1760.000000
262, 294, 330, 349, 392, 440, 494, 523, 587, 659, 698, 784, 880, 988, 1047, 1175, 1319, 1397, 1568, 1760
