The care home gave me a little book to complete with info on the PWD, a good idea. By the way @AliceA I had a read of the sound therapy you mentioned, will be interesting to see if they do more tests. I sent the info to someone I know who has fibromyalgia as it's supposed to help that as well.
Sound interests me, once I walked with a empty binocular case around my neck, a small biplane was flying very high but the sound was amplified and I could feel the vibrations strongly though the case. It make me wonder what noise does in this modern world of headphones.