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Atonality in its broadest sense is music that lacks a tonal center, or key. [1] Atonality, in this sense, usually describes compositions written from about the early 20th-century to the present day, where a hierarchy of harmonies focusing on a single, central triad is not used, and the notes of the chromatic scale function independently of one another. [2]
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Tonality is the arrangement of pitches and / or chords of a musical work in a hierarchy of perceived relations, stabilities, attractions, and directionality. In this hierarchy, the single pitch or the root of a triad with the greatest stability in a melody or in its harmony is called the tonic. In this context "stability" approximately means ...
As tonality began to expand during the last half of the nineteenth century, with new combinations of chords, keys and harmonies being tried, the chromatic scale and chromaticism became more widely used, especially in the works of Richard Wagner, such as the opera "Tristan und Isolde". Increased chromaticism is often cited as one of the main ...
George Perle (6 May 1915 – 23 January 2009) was an American composer and music theorist.As a composer, his music was largely atonal, using methods similar to the twelve-tone technique of the Second Viennese School.
The ordered sequence C-C ♯-D would be notated 0,1,2 or (0,1,2). Although C is considered zero in this example, this is not always the case. For example, a piece (whether tonal or atonal) with a clear pitch center of F might be most usefully analyzed with F set to zero (in which case {0,1,2} would represent F, F ♯ and G.
[2] His music is characterized by expressive, energetic, [7] organic amalgamation of opposite styles: tonality vs. atonality; repetitive rhythm vs. complex rhythm; meditation vs. explosive power; intellectual vs. emotional. [8] The first pure example is his opus Oxymoron. [9] Tüür developed a vector based voice leading technique.
The indifference of this rootless harmony to tonality places the burden of key verification upon the voice with the most active melodic line. [2] Quintal harmony (the harmonic layering of fifths specifically) is a lesser-used term, and since the fifth is the inversion or complement of the fourth, it is usually considered indistinct from quartal ...