Sundowning II by Lily Chen was written for Keyed Kontraptions in 2018. She based the subject matter on her own personal experience with her grandmother, and the changes that occured with her dimentia. Here is an excerpt from the forward of the piece:

“Sundowning is a neurological phenomenon most commonly seen in sufferers of Alzheimer’s disease. Patients with sundowning usually begin to show behavioral problems after the sun sets. Sometimes they get agitated, restless, or even aggressive; sometimes they suffer from auditory hallucination, illusion, or even delusional disorder. Such syndrome visited my aged grandmother, which put her in a state of mood swings, mental confusion, and cognitive disorder. I found her physical functions obviously degenerating; she even lost her sense of hearing the week before her death.”