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The folk music of later Joseon times can be represented by two main streams, Pansori and Sanjo. Later 19th century, these main streams of folk music started to branch into smaller ones including Danga, Jabga, Ipchang (Seonsori (silly talks)), folk songs, and Nongak (instrumental music of peasants). In fact, it will be fair to say that of these small branches the folk songs and Nongak surely date back to the ancient times.
  However, in that we for now don’t have a strong basis to support the claim, let alone anybody who have a clear knowledge base on their histories or origins, we won’t be able to give affirmation for that matter, in this text.

Despite the fact that both folk songs and Nongak definitely have longer histories and traditions than any other folk music genres and have not gone under so big changes in their modes over times, we still can not clearly identify the true natures of them for these reasons; first, the performers themselves are not professional singers or dancers but merely amateurs; and second, they are a public culture of music which find their origins in the natural lives of general publics.
Therefore, defining of folk songs or Nongak can be challenging since wide different criteria by different people may possibly be applied to their definitions .

Based on four percussion instruments including Kkwaenggwari (also referred to as Kkwaengmaegi or Soi), Jing, Janggu, and Buk, sometimes added to the performance of Nongak is the string such as Nabal or Taepyeongso (also called, Nalari or Soinap); or drums such as Sogo or Jabsaek. These instruments are played in a variety of Korean rural festivals ranging from Dongje (village rituals) on Deborum (great full moon), Musumnal (festival of servants) in February, Hwaang Play in March, to Dano in May