This strange orb can reside for decades or even centuries inside of an acoustic instrument. Some even believe it is what gives their beloved Violin, Viola, Cello or Bass Violin (or Upright Bass) its mellow rich tone.
It is actually the result of the vibrations inside of a well made acoustic instrument. The better the instrument, the tighter the ball. It is made up of lint and other debris that makes it’s way inside. The vibrations that create that beautiful sound coming out of that Strad hiding in your closet will gather the lint and cause it to travel in a specific pattern, creating the ball.
This one is from an old Cello and is about 70 years old. It is pretty tight meaning that the cello was built correctly. It is about 8/10ths in diameter.
tone ball
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