Songwriters get paid mechanical royalties, performance royalties, and synch fees anytime the song is used. Bands, for example, only get paid when their specific recording gets played.
Therefore, if something gets remixed, covered, etc. you want to be the songwriter, not the band.
Another factor here is that you never know which one of your or your teams songs will be a hit…and so many have a agreement to include eachother in their work
Little bit how VC funds work
Of course future industrial foundational models will be bought and paid for (and royalty free) for the companies that assemble them.
https://www.theverge.com/2023/2/6/23587393/ai-art-copyright-...
It's a bit hard to argue against. Stable Diffusion was trained on Getty's images and it does reproduce them, watermark included.
Getty Images will win the case.
It probably already is; the controversies make it likely people aren’t going to be overly forthcoming about their use of it, though.