  Recent breakthroughs in AI-generated music open the door for new forms for
co-creation and co-creativity. We present Artificial$.\!$fm, a proof-of-concept
casual creator that blends AI-music generation, subjective ratings, and
personalized recommendation for the creation and curation of AI-generated
music. Listeners can rate emergent songs to steer the evolution of future
music. They can also personalize their preferences to better navigate the
possibility space. As a "slow creator" with many human stakeholders,
Artificial$.\!$fm is an example of how casual creators can leverage human
curation at scale to collectively navigate a possibility space. It also
provides a case study to reflect on how ownership should be considered in these
contexts. We report on the design and development of Artificial$.\!$fm, and
provide a legal analysis on the ownership of artifacts generated on the
platform.
