Worked on stabilizing the YTMusic provider within the music-assistant/server repository by addressing a critical issue in audio stream format selection. Using Python and backend development skills, implemented a fix that replaced a faulty next(...) expression with a safer alternative, ensuring a valid audio format is always chosen and preventing setup failures. Enhanced error handling by explicitly checking for missing results and raising the appropriate UnplayableMediaError when necessary. This update improved the reliability and maintainability of the provider’s initialization process, reduced potential service disruptions during first-run setup, and contributed to a smoother user experience for music playback functionality.