To boldly hide who no-one has hidden before?

[webtaz99]

One problem with this theory:

Even though a tuning fork causes the wine glass to resonate at the same fundamental frequency, the wine glass will have a different set of harmonics than the tuning fork, making them distiguishable by sounds.

Physical objects have optical spectra, just as they have audible ones.

This may be an interesting mathematical issue, but it probably won't be more than a laboratory curiosity.