1st time I ran into this techie issue. How about you?
 

Okay, that was weird. Sitting at my desk.

I kept hearing music coming from the right, where I do have one speaker; but that is usually KFI radio from their tower down the street, but they are all news, never music.

I turned the speaker off and I still heard music coming from somewhere. All there is over there is a modem, router, external drive and my printer.

After disconnecting each item one at I time I finally discovered the music was coming from my printer. The paper was jamming.

I am really sorry ....