User blog comment:Xilinoc/Ch. 561 - THE VILLAN/@comment-28861328-20131211160420/@comment-28861328-20131211200359

You wouldn't impair your hearing as much as you think. He'd still be able to hear the music of Rose's Bankai, and since its an auditory illusion (at least the way Rose explained it), the fact that the sound vibrations still make it to his brain is all that it would take to induce the effects, unless Mask somehow destroys the auditory association area of the brain, and, at that point, we'd all be burning the manga.

I know it doesn't make much sense to apply scientific logic to a manga series about spiritual beings, but when it is used as an "Ah ha!" moment to defeat a major character on the protagonist's side, it really peeves me. If you don't know something, you shouldn't write about it, and lately it just seems like Kubo is pulling everything out of his butt to make the series even remotely interesting anymore.