At the turn of the century, music was characteristically late Romantic in style. Composers such as Gustav Mahler and Richard Strauss pushed the bounds of post-Romantic symphonic writing. Jean Sibelius also contributed to this movement by reworking traditional forms like the symphony. At the same time, the Impressionist movement began developing in France under Claude Debussy. Debussy loathed the term Impressionism, stating that it was poorly used by art critics. He claimed he was trying to do something different rather than follow established labels. Maurice Ravel's music often explored many styles not always related to Impressionism. Traditional instrumental groupings such as the orchestra remained typical during these early years.
The Atonal Revolution
An important moment defining the course of music throughout the century was the widespread break with traditional tonality. In Vienna, Arnold Schoenberg developed atonality out of expressionism arising in the early 20th century. His early works included Verklärte Nacht from 1899, which showed a late Romantic influence. This evolved into an atonal idiom before the First World War with pieces like Drei Klavierstücke in 1909. In 1921, after several years of research, he developed the twelve-tone technique. He first described this privately to associates in 1923. His first large-scale work entirely using this method was the Wind Quintet, Op. 26, written between 1923 and 1924. Later examples include Variations for Orchestra, Op. 31 from 1926, 28. Schoenberg taught Anton Webern and Alban Berg, forming the Second Viennese School. Webern wrote works using a rigorous twelve-tone method that influenced total serialism. Berg employed twelve-tone technique within a late-romantic style while writing operas such as Wozzeck and Lulu.Neoclassicism And Futurism
After the First World War, composers started returning to the past for inspiration. They drew elements like form, harmony, melody, and structure from earlier centuries. Igor Stravinsky produced neoclassical works including Pulcinella and Symphony of Psalms. Sergei Prokofiev contributed his Classical Symphony during this period. Ravel created Le Tombeau de Couperin, often seen as neo-baroque. Italian composers Francesco Balilla Pratella and Luigi Russolo developed musical Futurism. In 1913, Russolo published a manifesto called L'arte dei rumori calling for incorporating noises into music. The Machine Music of George Antheil began with his Second Sonata titled The Airplane. Alexander Mosolov's Iron Foundry became notoriously known for its industrial sounds. Microtones were explored by Charles Ives, Julián Carrillo, Alois Hába, John Foulds, Ivan Wyschnegradsky, Harry Partch, and Mildred Couper. These intervals are smaller than a semitone and difficult for instruments like piano or organ to produce without retuning.