It would be good to start with a bit of background information on "nuisance"

Under the common law, persons in possession of real property (land owners, lease holders etc) are entitled to the quiet enjoyment of their lands. If a neighbor improperly interferes with this right, that can be grounds for damages (money).

To be a nuisance, the level of interference must rise above the merely aesthetic. For example: if your neighbor paints their house purple, it may offend you; however, it doesn't rise to the level of nuisance. In most cases, normal uses of a property that can constitute quiet enjoyment cannot be restrained in nuisance either. For example, the sound of a crying baby may be annoying, but it is an expected part of quiet enjoyment of property and does not constitute a nuisance.

So you raise a great question....what about playing music?

The answer is covered by the standard of “reasonableness”....the question will be “is your music so loud as to be objectively unreasonable.

In your case, if the neighbor can show that your music playing is so loud that an average person would find it unreasonable....then they can hold you liable. If not, then not.

It really is as simple as that.

So at your hearing, you will want to focus on that concept. Again, reasonableness.

While your neighbor has a right to quite enjoyment, so do you. YOu have a right to enjoy your home and your music. But it must be objectively reasonable.

Sp, if you are blasting heavy metal with windows open at all hours of the night and your neighbors hose is 50’ away? That is likely going to be held unreasonable.

But occasionally cranking up the volume during the middle of the day? Not likely an issue.