Music [History] 101A text compiled from simple article overviews of music history and its movements. overs the Medieval and Renaissance, Baroque, Classical Genres, Classical Forms, Classical Composers, Early Romantic Era, Romantic Opera, Late Romantic Era, 20th Century: Impressionism, Expressionism, and Twelve-Tone, 20th Century: Introduction to Primitivism, Nationalism, and Neoclassicism, 20th Century: Aleatoric, Electronic, and Minimalist Music.