These block actions are used in the Block Action packet.
It shows the note particle being emitted from the block as well as playing the tone.
|Type ID||Type Name|
The pitch of the note (between 0–24 inclusive where 0 is the lowest and 24 is the highest). More information about how the pitch values correspond to notes in real life are available aton the Minecraft wiki.
The state the piston changes to: 0 for pushing, 1 for pulling.
Animates the chest's lid opening. Note that the notchian server will send this every 3s even if the state hasn't changed.
Not used, always 1.
New state of the chest: 0 for closed, 1 for open.