My dad said he was watching something on TV about antique violins, cellos, and other similiar instruments. Apparently they mentioned something about dust collecting into a big ball inside the violin/cello when they are very old, and that is a giveaway of age. Is there any truth behind this secondhand information, and does it apply to old basses as well? I'd never heard of it before and it sounded interesting. It makes sense dust would accumulate, but I never thought of it collecting into a big ball or something. Any truth here? Thanks!