Béla Viktor János Bartók was a Hungarian composer, pianist and collector of Eastern European and Middle Eastern folk music. He is considered one of the greatest composers of the 20th century and was also one of the founders of the field of ethnomusicology, the study and ethnography of folk music. Wikipedia
The definitive Wikipedia entry for Béla Bartók. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/B%c3%a9la_Bart%c3%b3k
Bla Bartk (1881-1945), the great Hungarian composer, was one of the most significant musicians of the twentieth century. www.harvardsquarelibrary.org/unitarians/bartok.html