A music genre is a category that identifies pieces of music that share traditions or conventions. It can be distinguished by musical techniques, style, cultural context, and themes. Geographical origin is sometimes used to identify genres, though a single region can include various subgenres. Some popular genres described in the document are folk, country, rock and roll, pop, punk, blues, jazz, and electronic dance music. Each genre listed has associated subgenres, famous artists, and a brief description of common musical ideas or styles.