Yep, I've got hearing loss in my left ear, but the right is still within normal levels. When I go shooting, now I plug and use earmuffs, and will use plugs when playing a full length show, or when I go to a loud event.
At a recent festival, I was talking with one of the guitar players in one of the bands. He used plugs, but said all of his musician friends have tinnitus, which is a bad deal. What good is playing music if you can no longer hear it?