I'm facing losing my hearing: can no longer sing like I used to as rampant tinnitus cuts across what I can hear coming out of my mouth. Generally can't hear in tune most of the time, whereas before I had not quite, but near perfect pitch. Can still just about get by playing my instruments (piano and button accordion) as they are of fixed pitch and don't require re-tuning each time I play them, but my guitar, even with electronic tuner, hasn't seen the light of day for a good long while. What I play sound very peculiar to me, but hope I'm hitting the right keys/buttons and it sounds OK to others!