I make custom endpins for cello and bass. Most musicians have trouble hearing a difference between pins, even when there is a 1 db difference in output between 2 pins under audition. This could be caused by their position under the ear and behind the instrument. When someone else plays their instrument and the original player is listening in the audience then that musican can hear the difference immediately.
Also if a violin is under the chin and has or has not a chin rest the instrument will mechanically react with the players skull and facial structure. We don't just listen thru our ears we use many parts of our body to make audible judgments. Tom
Also if a violin is under the chin and has or has not a chin rest the instrument will mechanically react with the players skull and facial structure. We don't just listen thru our ears we use many parts of our body to make audible judgments. Tom