First 10 Harmonics of Fundamental Frequencies of FFT plot

I have created a FFT plot for a wav file already.

The first 5 peaks in the FFT are the fundamental frequencies in the sample. How would I use the frequency values for these peaks to compute the approximate locations of the first 10 harmonics for each note in the sequence?

Answer 1

[KSSV]

Use the function findpeaks. Have a look on the function max, sort.

Answer 2

[Martinez Tutt]

Look at Wavelength frequencies also your major triad second should be a 100Hz an go on from thr...