Music Disc

Music discs are a set of 22 items that release in-game music when played in jukeboxes.

When a creeper is killed by a skeleton, wither skeleton, skeleton horse (via commands), stray, bogged, or parched, it drops a random music disc from the following pool:

Since wither skeletons do not use bows, they cannot attack creepers without using commands, and therefore are unable to cause a creeper to drop a music disc in normal gameplay.