Https://music.usc.edu/wp-content/uploads/2025/09/complete-list-of-copyright-desktop-support-usa-contact-numbers-a-full-2025-guide-247.pdf https://music.usc.edu/wp-content/uploads/2025/09/complete-list-of-copyright-desktop-support-usa-contact-numbers-a-full-2025-guide-247.pdf