Ok so if you had an instrumental you wrote, you are credited on it as sole writer/composer and master owner and it has been picked up (non exclusive) with a library and then an artist writes and sings a topline on it does it become a new composition?
How does that work? I'm guessing the topline writer should be added to the credits? Does it then become a new track? Do I have to go back to the library and my PRO and redo the copyright splits for the instrumental?
Thanks!
