public void removeAllUserMusics(User u){
    
        for(int i=0; i<musicsList.size(); i++){
            if(musicsList.get(i).getCreatorEmail().equals(u.getEmail())){
                 removeMusicsFromAnotherPlaylists(musicsList.get(i).getMusicCode());
                 removeMusic(musicsList.get(i));
     }
            
        }
    }