Third Overtone

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a diagram of a fourth harmonic or third overtone
a third harmonic or 2nd overtone is shown in a diagram
three men are posing for a picture and one of them is wearing a tan jacket
a fourth harmonic or 3rd overtone is shown in a diagram
a picture of a third harmonic or 2nd overtone
a drawing of a pink object with a heart and the name pikoole on the bottom
a black and white photo of two men in tuxedos walking