How to use the command box of "My World" horror music?

Enter the game, enter /playsound music name, select horror music, @ and play music to all players.

Command Block, also known as command block, is a block that can execute commands after being activated by the red stone signal in the game My World (Java 1.9 adds the function of keeping open, and there is no red stone), which provides many functions for adventure maps. ?

Starting with My World? After Java snapshot 15w35a, the command box can be activated without using Redstone signal. ?

This is a physical block that executes minecraft game commands. It can only be obtained by command, which is mostly used for multiplayer servers and custom maps. You can only open the GUI of the command box and put the command box in create mode.

In addition, the character limit of the command box is doubled again, and the command box is also added in the PE portable version (1.2 merged with other C++ versions to form the bedrock version) 1.0.5. The material of the command box has also changed.

The purpose of the command box:

Redstone signal can open the command box. This item has no permission limit and can be executed by some players who don't usually use commands (for example, everyone is allowed to get a specific item through /give, but they can't get anything they want with /give).

In 1.9 and above, the command box will have a direction ("towards"), which determines which chain box will be sensed and which "conditional" mode command box will be controlled by it.