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        | Chord made up of tones only a half step or a whole step apart, used in music after 1900. |  
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        | Approach to pitch organization using two or more keys at one time, often found in twentieth-century music. |  
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        | Absence of tonality, or key, characteristic of much music of the twentieth and early twenty-first centuries. |  
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        | Musical style which stresses tone color, atmosphere, and fluidity, typical of Debussy (flourished 1890–1920). |  
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        | use of the techniques of the twelve-tone system to organize rhythm, dynamics, and tone color. |  
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        | Musical style marked by emotional restraint, balance, and clarity, inspired by the forms and stylistic features of eighteenth-century music, found in many works from 1920 to 1950. |  
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        | Important person in Stravinsky's life. Asked Strav to orchestrate piano pieces by Chopin as a ballet music for the Russian ballet in 1909. Firebird was created in 1910 |  
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        | Musical style stressing intense, subjective emotion and harsh dissonance, typical of German and Austrian music of the early twentieth century. |  
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        | Stravinksi's 2nd ballet in 1911. |  
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        | Evocation of primitive power through insistent rhythms and percussive sounds. |  
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        | Klangfarbenmelodie (tone-color melody) |  
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        | Succession of varying tone colors serving as a musical idea in a composition, used by Schoenberg and his followers. |  
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        | In German, speech-voice; a style of vocal performance halfway between speaking and singing, typical of Schoenberg and his followers. |  
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        | Charles Ives conservative musical teacher at Yale. |  
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        | Philosophy of Unanswered Questions |  
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        | depicts the search for the meaning of life |  
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        | world renowned teacher in Paris, who taught Philip Glass. She also taught Elliot Carter |  
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        | (1935) An American musical that combines musicals and operas. Written by George and Ira Gerswhin. similar to Bernstein's West Side Story |  
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        | Great modern dancer and choreographer, where Appalachian Spring was originated as a ballet score. |  
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        | minimalism (minimalist music) |  
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        | Music characterized by steady pulse, clear tonality, and insistent repetition of short melodic patterns; its dynamic level, texture, and harmony tend to stay constant for fairly long stretches of time, creating a trance-like or hypnotic effect; developed in the 1960s. |  
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        Chance music
  20th-century music in which chance or indeterminate elements are left for the performer to realize. The term is a loose one, describing compositions with strictly demarcated areas for improvisation according to specific directions and also unstructured pieces consisting of vague directives, such as “Play for five minutes.” |  
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        | an entire piece of music written entirely for percussion by Edgar Varese. |  
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        | Spanish poet who's poems were the inspiration for Crumb's Ancient Voices of Children |  
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        | 3 Composers who won a Pulitzer prize |  
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        | Winton Marsalis, Ellen Taaffe Zwilich, Ives, Gerswhin, |  
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        both homophonic and contrapuntal textures employed and a variety  within a single composition. |  
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        major -minor system retained by some composers, but methods of establishing tonal centers altered. Other composers employed atonal systems including serialism. |  
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        Complex rhythms; rhythmic patterns used; frequent absence of well- defined beat; and frequent changes of meter |  
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        High dissonance levels; mew methods of chord construction in  addition to triadic harmony |  
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        Instruments sometimes played in extreme registers; unusual  instruments and instrumental groupings |  
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        sometimes derived from short melodic motives; melodies are  often not easy to sing due to extreme range and melodic intervals. |  
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        | Extremes employed and rapid dynamic fluctuations. |  
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        Wide variety in size of ensembles from very small to gigantic. New Organizational Procedures include serialism (twelve-tone) |  
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        Post Romanticism, Impressionism, primitivism,  neoclassicism, and Expressionism |  
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        Combination of ordinary speaking, conventional singing, and  Sprechstimme |  
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