OggPlayer

OggPlayer is a client-side music player that lets you play your own .ogg files directly in Minecraft, without any dependencies.

How to use:

1. Put your .ogg files in minecraft/oggplayer/music (open through Minecraft Launcher -> Installations)

2. Press F8 in-game to open OggPlayer (keybind can be changed in controls)

3. Select a song to start playing

4. Use the Pause, Stop, Volume, and Loop controls to manage your music (in f8 menu)

You can also use /music for playback commands.