Xtra Tunes (v1.9) for Minecraft 1.21.5 is a release file of the Minecraft resource pack Xtra Tunes: A Vanilla Music Pack, made for Minecraft 1.21.2-Snapshot, 1.21, 1.21.5, 1.21.1-Snapshot, 1.21.4, 1.21.5-Snapshot, 1.21.3, 1.21.1, 1.21.4-Snapshot, 1.21.2. It was published on March 31, 2025 and is 45.6 MB in size. For the full description, screenshots and every other version, visit the Xtra Tunes: A Vanilla Music Pack resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.