Minecraft wiki entry for Sounds.json, associated text: A sound event is linked to one or more in-game events. Two sound events may share the same sound file, but correspond to different in-game events and/or belong to different sound categories. A few valid sound events aren't included in sounds.json, while others don't have an in-game event associated with them. Any sound event that lacks an in-game event can be played only with /playsound. All default sound events, the sounds they use, the category they belong to, the subtitle that plays at that event, and the in-game events they are triggered by are listed in the following table.