Developed synchronized TTML lyric support for the song "太阳下山还有月光" by 汪辰Aeny in the Steve-xmh/amll-ttml-db repository, focusing on precise lyric synchronization and metadata management. Leveraged XML and TTML to encode lyrics with detailed per-line and per-word timing, as well as comprehensive metadata including music ID, title, artist, album, and authorship. Enhanced real-time lyric display and searchability by introducing per-word timing and authorship data. Addressed data hygiene by removing obsolete TTML files, reducing data bloat and improving maintainability. This work strengthened end-to-end lyric provisioning, from content packaging to ongoing data maintenance, using robust metadata design practices.