Earlier quoted context omitted.
> MusicGen's weights are licensed CC-BY-NC, which is effectively a nonlicense as there is no noncommercial use you could make of an art generator How do you figure? Have you never just...made stuff to make stuff?
I think the key word there is "noncommercial".
Obviously, you can't host a commercial art generation service with a noncommercial-use license, and (insofar as art produced by a generator is a derivative work of the model weights, which is a controversial and untested legal theory) you can’t make commercial art with a noncommercial license, but not all art is commercial.