[ksaj]

Suno (an AI music site) specifies in their FAQ that the music isn't copyrightable. But your lyrics might be. And if you put a project together (and album or whatever) then that might also be. If you orchestrate a video for it, that is likely copyrightable. But the music itself isn't, since it was an algorithm based on a lot of other people's work that made that happen - not your skill or effort.

People who use AI to improve their own work most definitely have an argument that they own a copyright to the output. But in this case, they might only have claim to the lyrics, for example.