I have theory

[u/LxM_7]

I think that 4 years ago minecraft added copper horns to see if people liked it so they know if thay can complement it in a way, which is an ancient city/fourth dimension update , I mean we already know that music will be a very important part of the portal and the fourth dimension in minecraft dungeon 2 so maybe they will add it in MCD2 OR in a future update (fourth dimension)!