Not only one.
As a researcher in hearing I learned about fundamental frequencies/natural frequency/resonant frequency. It’s the basic tone of any vibrating object. Harmonics, in the simplest explanation, resonates with the fundamental frequency. Like the quiet sea, that’s disturbed by swimming creatures or boats, ripples happen. Ripples within ripples within ripples. Photography is much the same way, you find your voice, but there are other voices within your voices. Yearning to come out. Let them out. It will complement your voice. Watch out for dissonance.Tags: harmony, inner peace, ocean, photography, pitch, ripples, sea, thoughts, vibration, voice