This is the 18029th most frequent Russian word.
фольклорных
"Фольклорных" means "folkloric" or "related to folklore."
Here, "фольклорных" describes the genres as being related to folklore.
Многие народы передают свои традиции через песни и рассказы фольклорных жанров.
Many peoples pass down their traditions through songs and narratives of folklore genres.
In this sentence, "фольклорных" defines the works as being of folklore.
Изучение фольклорных произведений помогает понять историю и культуру.
The study of folklore works helps to understand history and culture.
Here, "фольклорных" is used to describe dances as associated with folklore.