There’s certainly a point where this synthetic music gets good enough to replace the elevator music Muzak crap that they have to pay $2000 to license.

I need to stem it, fix it up a bit, and remix for stereo in a DAW but it's much better than I expected for my first ever piece of music. Obviously it'd take a lot of work to create a Hans Zimmer level OST from the tool but IMO it wouldn't feel out of place on a Ludovico Einaudi album or on some Spotify or Pandora classical radio.

I don't think musicians and composers are going to disappear as a consequence of this technology, in the same way that theatre actors were not made obsolete by film. What I do think is that a whole new category of professionals will be created - musicians and composers who get paid to train AI models. I bet it will pay better then the laughable amounts that are streaming royalties.