Manchurian or Mongolian influence on the culture of northern Korea?

Hi r/Korea, I am a really inquisitive history student. As something that I have observed was that in countries where there is some sort of divide between north and south or east and west, you see in these countries the culture is influenced by different poles, usually some sort of indigenous culture taken over by the dominant culture that defines the culture of that nation. For example in northern Japan with the Ainu, eastern Germany with the Slavic tribes, southern Italy with some elements from the Greek Byzantines. I've read about how there were many immigrants from China and even Japan and Vietnam that lived within the Korean borders as of the past during Goryeo and before. Yet something that isn't often talked about is the influence of the Manchurians and Mongolians on the culture of the north. Do you notice some residual Altai influences on the culture of northern Korea in language, folklore, and customs that extend far back?