In TAB4U our staff upload notes, and other musicians. some need credits and some do not.
At any time you can pay and ask a musician to edit the song you want or use an existing version for free or not.
In addition, any musician can upload Notes that he has edit to the song Luka, And allow to use them free or not.
In short, to see if there are versions of notes to the song Luka you must first