Mark at Parttimemusician.com linked an interesting article from National Public Radio relating playing music to hearing ability.
Another cool study showing the growth of our most incredible muscle- the brain! Apparently musicians will hear and distinguish sounds better because the brain, having had more exposure, will have more tools to interpret with. This includes discerning specific sounds as well as hearing very minor variances in pitch! Start working that muscle and play some music!
Click Here for the article! Thanks, Mark!