Question: String Quartet No. 14 is the one of a series of seventeen works in the medium by which Brazilian composer, written in 1953, who was described as "the single most significant creative figure in 20th-century Brazilian art music"?
Sentence (from "Heitor Villa-Lobos"): A prolific composer, he wrote numerous orchestral, chamber, instrumental and vocal works, totaling over 2000 works by his death in 1959.
Relevant evidence: No