So you are suggesting that feel doesn't exist?
It's still feel though, and it's a very deep technical topic of resonance, harmonics, sustain and frequency. I've seen the same debate regarding guitars. You can have 2 guitars of the same model made via a CNC machine to the same specs and using the same exact materials, but one will feel different to the next. Does it sound different? Maybe just a smidge. From a physical specs stand point it should feel the same to the hands, but our hands also feel the vibrations. Now this is where resonate frequency comes into play. Everything has a resonant frequency, a frequency that when struck it will vibrate at, including people. Resonant frequency is determined by a combination of material, mass, density and shape. When a string is plucked it will vibrate at a frequency of the note but the transference of that vibration is dampened or enhanced by all the materials involved. The neck will vibrate at its own resonant frequency which the musician can't hear but can feel. So those 2 identical instruments can feel different based on different density of wood which affects the resonant frequency. Now let's take this a little further, if feel were only sound in this regard, a fellow by the name of Ludwig von Beethoven kind of contradicts that sound is the only sensation created by vibration. But wait there's more! A guitar string plucked at a different point along it's length will sound different, this is a result of harmonics, or a stack of different tones generated at initial strike of the string. Some will decay faster or sustain longer based on proximity to the end of the string. A more relevant example is drums, drummers can get a different tone based on where on the drum head the struck the stick.
