Like Buffy has pointed out, it is most likely to be your Extensions in Google Chrome. It is simple to remove this just by finding the Extension and deleting it. If that doesn't work it means that you downloaded the music with a browser extension offer which you might have accidentally accepted.
If that is the case, you need to go to your Programs list in your Computer via Control Panel and you must remove the app which has a similar name to the browser/problem that you have and remove it.
Then restart your computer to ensure everything is fine.
Note: Make sure not to delete something important if you aren't very good with computers, I suggest getting someone else to assist you on that one IF you may need to go into your Control Panel.
If this ALSO hasn't helped, it might be something to do with your plugins which I highly doubt but there is always something hidden somewhere if not spotted.