Commercial musicians do not?
You sure about that?
Entire legal firm empires have been built on the licensing, negotiations, and fees that make up the industry.
I'm ain't talking about some dude on YouTube or Soundcloud. Few people care about some rando on Soundcloud. Those moles aren't big enough to whack. Vanilla Ice and MC Hammer were. OpenAI is as well.
There's even a company that specializes in sample clearance: https://sampleclearance.com
More info: https://www.soundonsound.com/sound-advice/sample-clearance
Also:
>not turned into a part of a pattern used to generate new sounds like what AI generators do with images
This is demonstrably false. Multiple individuals have repeatedly been able to extract original images from AI generators.
Here's one-- Extracting Training Data from Diffusion Models https://arxiv.org/abs/2301.13188
Text, too: https://arxiv.org/abs/2311.17035