Https://music.usc.edu/wp-content/uploads/2025/09/full-list-of-copyright-online-advanced-support-talk-to-person-support-numbers-an-official-guide-usa.pdf https://music.usc.edu/wp-content/uploads/2025/09/full-list-of-copyright-online-advanced-support-talk-to-person-support-numbers-an-official-guide-usa.pdf