This is a small world/structure that has a Jukebox capable of playing any song you put into it. I don't think anything like this has been made yet, so I hope it can help people make music in Minecraft and help world builders add music to their creations.
Here I show you a tutorial on how to work it.
Works on pure vanilla Minecraft 1.14+
Modify as you wish, but please give credit if you post anything with it.
*Thanks to my wife for helping me understand music a bit and writing the arrangement for Megalovania*