In any case, as I listen to other folks' singing, I've gotten to where I really can hear things, and I notice often when I listen to songs or albums I haven't listened to in years that now I hear stuff I never noticed before -- for example, today I listened to the soundtrack for Yellow Submarine and I actually heard layers of sound I'd never heard nor appreciated before. I always knew George Harrison was a guitar god -- I just never really listened to what his guitar gave to a tune. I always liked the Beatles when I was young, but now I know WHY.
I can talk turkey with actual musicians and know what I'm talking about. Maybe it's finally time to take serious guitar lessons.