Question: "On the Mall" is a famous march composed by American bandmaster Edwin Franko Goldman, the music of the United States reflects the country's multi-ethnic population through a diverse array of styles, and has the world's which term. music market with a total retail value of 4,898.3 million dollars in 2014?
Sentence (from "Music of the United States"): Since the beginning of the 20th century, some forms of American popular music have gained a near global audience.
Relevant evidence: No