My 92 year old mother was a trained singer when she was young and always had a beautiful voice. She has moderate dementia at this point and over the last 4-5 years or so has begun to believe that her electronic keyboard is out of tune. When we swapped hers for ours, she said the same thing. She insists that we get her keyboard tuned but, of course, electronic keyboards cannot be tuned and both of them sound fine to the rest of the family. So, to try and address this my husband and daughter took her to a music store where she played no less than 10 NEW keyboards, all of which to her ears were (you guessed it) out of tune. Taking her to our church where she was permitted to play the JUST TUNED piano resulted in the same declaration. She does have significant hearing loss at this point as well but refuses to use a hearing aid and that's just as well as she has "lost" her lower dentures twice in the last month and a half. Has anyone heard of or know about whether dementia has an impact on tone deafness?