Complex sentence: After separation of Pappo's Blues and Aeroblus, Norberto Napolitano formed in 1980 a new band called Riff, influenced by AC/DC, Motorhead and Black Sabbath imposed the heavy metal music in 1980s in Argentina.
Split into simpler sentences: After separation of Pappo's Blues and Aeroblus, Norberto Napolitano formed in 1980 a new band called Riff. Influenced by AC/DC, Motorhead and Black Sabbath imposed the heavy metal music in 1980s in Argentina.