Many people who cannot see have unusually a developed hearing and musical ability. Once you can't see, the parts of your brain that were used for sight now get gobbled up by sound. Our experience with sound changes our brain. It changes biologically, who we are. We have a responsibility to ourselves and others to give this a think.
We undervalue our sense of hearing and we under-appreciate the impact sweet sounds and disturbing noises have on our well-being. Neuroscientist Nina Kraus of Northwestern University talks about her book, Of Sound Mind. Kraus argues that our listening affects our minds and brains in ways we ignore at our peril.