Is this sentence correct that traditional festivals are adapted from traditional folk songs?

They are traditional folk songs that existed only during traditional festivals. Some traditional folk songs were adapted from traditional festivals.

Most of the songs are usually composed for children. Sometimes, they will also sing characteristic songs of their own nation in some local and custom-themed song activities. The difference between ballads and songs is that ballads mainly rhyme, often expressing some interesting little things, and sometimes elaborating a profound truth, but they are all short and rhyming, and there are rarely very long ballads.

Chinese traditional festivals are an important part of the long history and culture of the Chinese nation, with various forms and rich content. The formation of traditional festivals is a process of long-term accumulation and cohesion of the history and culture of a nation or country. The ancient traditional festivals of the Chinese nation cover humanistic and natural cultural contents such as primitive beliefs, sacrificial culture, astronomy and calendar, Yili and Shu, etc., and contain profound and rich cultural connotations. The traditional Chinese festivals that developed from the time of ancient ancestors not only clearly record the rich and colorful social life and cultural content of the ancestors of the Chinese nation, but also accumulate profound historical and cultural connotations.