The music folder is missing from the sounds folder

[Funny-Number]

There is no music folder in the sounds folder which means it is impossible to make custom music discs

[Tensi1112]

Due to copyright, game music is not available here.
The file path of the music disc can be found in RP/sounds/sound_definitions.json.

[Tzipirigu]

Due to copyright, game music is not available here.

What do you mean by copyright? As far as I know, the music in Minecraft is not copyrighted. They probably didn't put it in because of the size.