of, relating to, or shaped like a triangle; having three angles; triangular. 2. Crystallography. having threefold symmetry. Origin of trigonal.
An online survey conducted in the U.S. points out that the most popular music genre in the U.S. is rock, with 40 percent of respondents choosing this option. The second and third most listened to music genres are oldies and country respectively, while hip hop/rap is favored by a smaller niche of American listeners.
Country music is a genre of American popular music that originated in the Southern United States in the 1920s.It takes its roots from the southeastern genre of American folk music and Western music.he term country music gained popularity in the 1940s in preference to the earlier term hillbilly music ]; it came to encompass Western music, which evolved parallel to hillbilly music from similar roots, in the mid-20th century.