People Have Never Liked Modern Music-At First -- Music Tells How People Think, and Act -- Dissonance-the Salt and Pepper of Musiv -- Debussy Starts Something-Impressionism -- Schoenberg Finishes Something-Atonality -- Writing Music in Two or More Keys at Once-Polytonality -- Back to Bach-Neo-Classicism -- Workaday Music for Every-Day Use-Gebrauchsmusik -- From Plain-Song to Swing-A Story of Rhythms -- Tone-Clusters, Quarter-Tones, and Other Matters