> audio recordings Recordings are copyrightable even if the underlying music is public domain. If you record a performance of Mozart's 40th symphony on your ph

> audio recordings Recordings are copyrightable even if the underlying music is public domain. If you record a performance of Mozart's 40th symphony on your phone, you can be sued for copyright violations by the concert hall. (Don't be surprised that concert halls perform for more than just the attendees.)