All bugs/glitches not encountered in all gamemodes.

Several music errors were discovered, all similar to each other.
a) In survival mode, ejecting a disc while breaking the jukebox block may make the jukebox music permanent (Goes off after exiting the world). (Both survival and creative mode).
b) Sometimes, when destroying the jukebox block (After a) ALL music can go off (Not any music until exiting Minecraft). (Creative mode).
c) Sometimes, when playing jukebox exiting the world, jukebox music can stay on (Does not go off until exiting Minecraft). (Creative mode).

(Extra note: Making music disc "13" permanent with this glitch can creep the $#!% outta you.)