I want to add new music to the end. I could do this by adding this:

	@Nullable
	@Override
	@OnlyIn(Dist.CLIENT)
	public MusicTicker.MusicType getMusicType() {
		return MY_NEW_MUSIC;
	}

code to the EndDimension. I don't really wan't to use a coremod because I don't really know how to do it and it is considered bad practise

The best option, in my opinion, would be to just modify the sounds.json like a regular resource pack.

For reference, these are the vanilla entries for this (in case you don't want to dig through hashed files to find it):

"music.dragon": {
  "sounds": [
    {
      "name": "music/game/end/boss",
      "stream": true
    }
  ]
},
"music.end": {
  "sounds": [
    {
      "name": "music/game/end/end",
      "stream": true
    }
  ]
}

 

2 hours ago, imacatlolol said:

The best option, in my opinion, would be to just modify the sounds.json like a regular resource pack.

For reference, these are the vanilla entries for this (in case you don't want to dig through hashed files to find it):

"music.dragon": {
  "sounds": [
    {
      "name": "music/game/end/boss",
      "stream": true
    }
  ]
},
"music.end": {
  "sounds": [
    {
      "name": "music/game/end/end",
      "stream": true
    }
  ]
}

 

You can do that? That's easier than I thought then