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.
Determining the Different Genres of Pop Music. 1  1. Classify rock music. Rock nâ roll is a broad form of pop music that contains nearly a hundred spin offs and subgenres. 2  2. Identify top 40 pop music. Top 40 is a way of tracking the success of a pop song, based on listeners and popularity. 3  3. Classify country music. Country music, like all other genres, continues to grow and develop into subgenres. Country musicâs strongest emphasis is the narrative of the song. The song remains in a pop song format with a verse and chorus. It is also characteristic for the singer to have a bit (or a lot) of twang.