When playing multiplayer and somebody summons the wither the sound of the wither plays for all players no matter where they are in the world. In other words, the sound of a wither spawning (being released) is considered a global sound event.

Steps to Reproduce:

1. Have two players join a server
2. Position one player far away from the other player (hundreds, or thousands of blocks)
3. Have one of the players create a wither using soul sand and wither skulls

Expected Result:

The sound would only play for the player actively engaging or intending to fight the wither boss. The sound is unnecessary for players which are very far away.

Observed Behavior:

The sound will play for all players, regardless of distance.