A lot of what makes an instrument sing is the peculiar, individual synergy it generates with the musician who plays the thing. As the cliche says (how do I get this verkokte website to put the accent mark on the ""e"?), it takes two to tango.
Telling musicians to evaluate and choose their instruments in a “scientific” way?
How do you think this would go over?
“This mass produced guitar measures the same as your vintage Martin on my oscilloscope, so any difference you hear is just expectation bias.” “You need to do a double blind test to prove there’s a difference!” “Rosewood is rosewood, there’s no difference between this Brazilian that’s been seasoned for 20 years and that Indonesian that came off the boat a month ago, you’re being taken in!”