At “Auguste’s Cottage” at Allisonville Meadows, it takes just a few notes to get some of the Alzheimer’s patients up on their feet and dancing.But it’s much more than just fun — it’s music therapy that’s triggering memories that the disease has stolen. “Music stores itself in the long-term memories very deep in your brain, and even though you have residents who are not able to communicate effectively anymore with words, somehow they can still remember music that was a big part of their lives when they were younger,” said Amanda Janz, with the Alzheimer’s Association.