Fdem,
in one of my previous song posts you wrote: "You just have to ask what part are you playing in the song? Seems like all that u can claim is the song." In that specific song I recorded everything myself. All I did was replace my vocals with AI vocals. AI was a tool I used to improve the quality of my recording.
I like your song. It's good. But like you wrote here, you have to figure out what role you're playing. Without AI you would only have your lyrics. Your lines are very well-written but without the AI tool the song wouldn't exist. I agree with you that it's a tough question. I'm not sure where people draw the line between lyricist, composer, songwriter and singer songwriter these days.

Take care
Robert