There has to be a way to go back to iTunes and not have to use Music?

So I upgraded to a new Macbook a couple of months ago after refusing to update my 2015 so I could continue using iTunes. I've been using Music since I got this new Macbook and it's still horrendous for offline music. There has to be a way to get the old iTunes or a similar program! It was literally perfect for music organisation and Music isn't even half of iTunes. They recently discontinued Retroactive which allowed you to mirror iTunes and that was the only viable option :( Anyone can help would be much appreciated