This story was inspired by the Northwestern University article "Live music series offers boost to dementia patients, caregivers." A live music series with short introductory talks, created for people with memory conditions and their families, showed emotional, intellectual, and social benefits, with participants' mood improving significantly. In the story, a machine about to write "no response" for a long silence after a performance swaps out one of the things it records. The thing you gave up on because the reply was slow — had it really not arrived?