I play several instruments and this is a correct analysis, but I would also add that resonance plays a huge part in the emphasis of certain frequency ranges. An

I play several instruments and this is a correct analysis, but I would also add that resonance plays a huge part in the emphasis of certain frequency ranges. An acoustic guitar resonates through the body to emphasize and amplify the vibrations of the guitar strings, and in fact the shape and composition of the body will emphasize different ranges in completely different ways. The strings also cause sympathetic vibrations in each other, further adding to the resonance and contributing to the tonal quality (timbre) of even a single note.