There are 72 major raagas - called mela kartha raagas - those are the root raagas, and there are combinations and permutations done that generates the janya raagas - which is children raagas (there are thousands of those - and different artists can create variations on these).
Most films in Hollywood have narrative beats - its 7-8 beats. Each tv show for eg, has 5-6 beats. Most micro drama episode has 2-4 beats. Its quite structure that way.
If you take a structure like Save the cat, or Heroes' journey, the order of the beats are also quite well laid out - just that those two structures dont cover the span of stories, and rest is all quite undocumented.
Im trying to work backwards - and quite aware that i am probably identifying derivatives than the root, but even the derivatives can be quite useful to guide others from generating engaging content.
I am not aware of Aarne Thompson's work. I'm looking it up right now...