I wonder if this will lead to a sort of "open sourcing" of music, where the reputation of what one produces will be improved by releasing the raw DAW files/tracks/etc. Even if AI is used to generate the constituent parts of a manually-assembled track, it would still demonstrate to listeners that there was significant human involvement in the process.

Touring, merch, etc will also serve as good "proof of give-a-shit".

That would be neat, but I really don't see it happening. In software-land, it's my sense that, if anything, AI is working against open source. AI is creating busy work for open source maintainers with a large volume of low quality PRs, and scrapers are burdening those who maintain their own small-scale, public facing infrastructure.

Meanwhile, AI is ingesting their publicly available data to improve itself, with the implicit (if not explicit) goal of making those projects irrelevant (why read the docs, participate in a forum or chat, or submit a PR when you can ask your AI thing to just write the code you want instead?).

Furthermore, if a software developer is of the opinion that AI is "bad" in some way and they want to resist it, I think it would make the most sense to keep their code private. Open source is feeding AI.