@nhbfan I'm in agreement with @celia16 that these delusions and hallucinations don't go away and it's best to agree with your mom that the music is present and then discuss what to do. I rather like @celia's recommendation that the children next door enjoy the music and you can ask them to turn it down. I've had similar experiences with my relatives and found it works best to participate in the loved one's reality such as what kind of music is it?, discuss music your mother has enjoyed in the past. Unless the delusion or hallucination is a safety issue and I'm guessing your mom hearing music that isn't present doesn't fall into the safety category, perhaps you can figure out how to make this an opportunity to discuss and interact with your mom?