A sub genre is like subdivisions of an encompassing term. Like if you say you saw a movie labeled -drama- could you watch it and see if it was a romantic drama?
Its taking groups like comedies, mysteries, poems, and making the thinking narrower.
phycological
Subgenre is one word, however, those who doubt how the word is constructed may use a hyphen.
Jazz
Nerdcore is a subgenre of hip hop.
nature writing
It's a revenge tragedy.
The book "John Henry" falls under the genre of American folktales and its subgenre would be specifically categorized as a tall tale.
She contributed to the development of the gothic subgenre
nature writingnature writing
Fiction
Miles Davis
"Paper Towns" by John Green falls under the subgenre of young adult contemporary fiction, specifically focusing on themes of coming-of-age, friendship, and self-discovery.