Music Licensing Question | who owns code written with Copilot

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Illustrative scenario prepared by my practice.
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Hypothetical question

Quick background on my situation — any input appreciated.

who owns code written with Copilot. I've been dealing with this for about 13 weeks now and the situation isn't improving.

This involves content I created over the past 32 months. I do not have documentation proving my ownership and timeline.

What are my legal options here? Is it worth pursuing?

Illustrative response

NAL, but from what I've read, you should send a written demand. Standard disclaimer: talk to an actual attorney for your case.