Affects Version/s: Minecraft 1.5.2, Minecraft 1.6.1, Minecraft 1.6.2
Fix Version/s: Minecraft 13w36a
When you join a world and your sound settings are for example:
Music: 12%, Sound effects: 80%,
any jukebox you turn on will use the sound effects volume and play on 80%.
However when changing the music volume setting while the jukebox plays, it will then use the music volume.