Even though Allmusic doesn't own Xperi's data, Allmusic can still embellish that data with user-contributed data from Allmusic members.  You can charge music professionals to have "verified" accounts, in order to be able to contribute to their own credits.  You can also invest in creating a platform, like IMDbPro, for aspiring artists who are seeking wider exposure to showcase their talents on your platform instead of on other social media sites.

Allmusic should explore diversifying its revenue sources and customer segments.  I hope that you can monetize the licensing of your data to companies like Roon.  Even with subscription, you can offer a subscription tier for organizations (e.g. radio stations, libraries).