The document discusses three music genres: rap, death metal, and pop music. Rap originated in hip hop music and is now also used in other genres like pop, rock, and R&B. Death metal evolved from thrash metal and features aggressive sounds, distorted vocals, and fast instrument playing. Pop music is a genre of mass popular music characterized by simple instrumentation, vocal focus, and emphasis on rhythm. It includes subgenres like europop, latin, synthpop, disco and dance music.