Which composer traveled the countryside recording and transcribing in great detail the music of rural and small-town people?

The composer who traveled the countryside transcribing and recording in great detail the small-town and rural people’s music is Bartok. He was a Hungarian composer and pianist. He collects Middle Eastern and Eastern European folk music. Bartok is one of the best and greatest composers of 20th century. He is also one of the founders of ethnomusicology which is the ethnography and study of folk music.