[MC-44549] Music stops when changing gamemode

When switching gamemode to survival, creative or adventure, while the minecraft music is running, it will stop after the gamemode has been changed

Environment

Windows 8.1 64 Bit
Java 7 Update 45

The music stops only when switching to creative and from creative to any other gamemode. It does not affect music discs, however.

that's because there is music that only plays at the player when he/she is in creative, other gamemodes don't support that music