That is my point exactly. The only possible way for the sound created to be equal is the absence of sound. Sort of like the only way for two fingerprints to be the same would be the absence of fingerprints.
Frequency, Wavelength, Wavenumber, Amplitude, Intensity, Speed, Direction !
see my next response
In simple terms. Sound is waves of pressure created by the movement of energy through matter. If the matter is changed, even in the slightest, the result is different. e=mc2
Frequency, Wavelength Wavenumber Amplitude Intensity Speed Direction
The united states military and various research groups have done extensive research on the human body's ability to interpret sound. Note I say the "human body's" ability. All human interpretation of sound is not sourced at the ear drum. Sound, especially in the higher range can be detected from waves of sound passing through the body.
I said in some cases because the difference in sound produced by an electric guitar may or may or not always be percievable by a human. Can a human hear a dog whistle? Yes, the person blowing the whistle can sometimes hear it. Other sound is produced in the act of blowing the whistle, like the vibration of the cheeks or air bouncing back off of the blowers face. A person 15ft away may not be able to hear it. So do i think you are correct? No, I know you are not considering a guitar will actually sound different to the person playing a particular insturment than one standing next to him for similar reasons.
I'm not trying to bust your balls man. most people in their first year of their <insert field> Science Major go through this. Your experiment is too complex, try to find simpler ways of providing the same results, that's all I was saying.