nottingham university. mick and other members of the choir had a series of brain scans to show the impact music can have on people with dementia. today s report brings together powerful evidence to show music is an effective therapy. we know that it does something to the brain, but what s happened now with dimension and, obviously, the science we have started to look into is that it actually scientifically does something to the brain, so it hits a certain part of your brain that makes you feel pleased, or hits a certain emotion. so that is scientific evidence that it is working. this is paul harvey, who is also living with dementia, playing his improvised tune four notes. paul comes alive at the piano. his tune was taken up by the bbc fill mnemonic orchestra and was released as a single. it has raised more than £1 million for charity and is helping to fund music therapy sessions in care homes.