The document summarizes four different types of music: classical music, pop music, reggae, and jazz. Classical music developed between 1750 and 1820 and balanced harmony and melody. Pop music retains a simple "verse-chorus-verse" structure and is catchy and melodic for mass appeal. It began truly succeeding in the 1960s with artists like Michael Jackson. Reggae originated in Jamaica and includes subgenres like roots reggae and dancehall. Jazz emerged in the late 1800s in the United States and has influenced and been influenced by other styles globally over the last century.