Genres are complex and fuzzily-defined, but they're definitely both useful and widely-used. You don't have to make it incredibly strict and granular, but subge

Genres are complex and fuzzily-defined, but they're definitely both useful and widely-used. You don't have to make it incredibly strict and granular, but subgenres give an easy way to say 'these works are similar', and that's helpful in all kinds of situation.