I am doing the same. I started to connect my agent to beets db. Actually would be quite I interested in some clean-up skills. I actually started to go to the local library again to add to my music collection (at least in my jurisdiction you can do private copies of non DRM content)

Could you provide more details about your LLM + Beets setup? I've been thinking of doing something similar and figured Beets could help me organize the random piles of MP3s I have scattered around my drives, but I don't want to manually correct the ambiguities from incorrect tagging.