What major composer of Violin concertos is considered one of the most important composers of the 20th century?
Béla Bartók: Béla Viktor János Bartók ( ; ] ; 25 March 1881 – 26 September 1945) was a Hungarian composer, pianist and an ethnomusicologist. Béla Bartók:  He is considered one of the most important composers of the 20th century; he and Liszt are regarded as Hungary's greatest composers .
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