I think humans can't keep track of 5000 of anything.
Marbles, Kittens, or even BIAB styles.
Just too many things.

Perhaps PG Music can switch the approach on styles .
Instead of the ever increasing number of a particular style (lets say samba), try the following
Offer a single samba style then afford users some control how each musician in the "band" plays that particular stye.
There may be some need for a couple more but perhaps less than the 187 that currently exist in biab. (Disclaimer - i have no idea how many samba styles there but there are many)


There are examples of this approach to software based session players. I've used a couple of them. They are quite powerful.


biab2025(Mac) Latest Build
Mac OS (Latest)
Apple Mac Mini M2 pro 32GB Ram
Logic Pro (latest or pretty close)
Heddon Super Spook XT (Mullet)