Is perfect pitch good to have? I've read of older musicians with perfect pitch saying that when they get up near their 50s their perfect pitch drifts. They sta

Is perfect pitch good to have? I've read of older musicians with perfect pitch saying that when they get up near their 50s their perfect pitch drifts. They start hearing things as being higher or lower than they really are. For some that drift can be up to two semitones. This can make it very annoying to listen to music--it all sounds off. For everything you need as a musician relative pitch is fine, and won't go out of whack when you get older possibly ruining your ability to enjoy music.