Like Avguygeorge, I have some experience with managing rentals (8 years as a resident manager). While I agree that the presumption favors the complainer, and if it's audible at all in other units, you may get shut down, many jurisdictions have language like "peaceful enjoyment" which is probably not usually interpreted as a "right to silence," esp. before 10 or so. (Think of ordinary conversation, the sound of footsteps, or a baby crying.) In practice, and maybe in theory, I think managers (and judges) operate with a "reasonable person" standard, so that it helps your case if you can show that the music is not blaring. Elizabeth's suggestion of appealing to measurements could help you make your case, if you're unfortunate enough to live near someone who is always listening for mouse farts. John