Hmm, it's not as if Pythagoras could measure exactly 27 Hz, or that we all hear down to exactly 27.00, or that it's easy to generate a pure tone that low withou

Hmm, it's not as if Pythagoras could measure exactly 27 Hz, or that we all hear down to exactly 27.00, or that it's easy to generate a pure tone that low without clearly audible harmonics. So I guess I'm not convinced.