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In music theory, a tetrachord (Greek: τετράχορδoν; Latin: tetrachordum) is a series of four notes separated by three intervals.In traditional music theory, a tetrachord always spanned the interval of a perfect fourth, a 4:3 frequency proportion (approx. 498 cents)—but in modern use it means any four-note segment of a scale or tone row, not necessarily related to a particular tuning ...
The first two of these are the same as the first two tetrachords of the Greater Perfect System, with a third tetrachord placed above the Meson. When all these are considered together, with the Synemmenon tetrachord placed between the Meson and Diezeugmenon tetrachords, they make up the Immutable (or Unmodulating) System (systema
[g] A diatonic tetrachord comprised, in descending order, two whole tones and a semitone, such as A G F E (roughly). In the chromatic tetrachord the second string of the lyre was lowered from G to G ♭, so that the two lower intervals in the tetrachord were semitones, making the pitches A G ♭ F E.
The phrase synesthesia in art has historically referred to a wide variety of artists' experiments that have explored the co-operation of the senses (e.g. seeing and hearing; the word synesthesia is from the Ancient Greek σύν (syn), "together," and αἴσθησις (aisthēsis), "sensation") in the genres of visual music, music visualization, audiovisual art, abstract film, and intermedia ...
In Sight and Smell, the paintings in the background include The Healing of the Blind, representing spiritual sight, in contrast with physical sight, represented by a magnifying glass. A telescope in the foreground and a hallway in the rear, lined with art works, leading to an open door into nature and lit from above by shafts of sunlight, also ...
Pyknon (from Greek: πυκνόν), sometimes also transliterated as pycnon (from Greek: πυκνός close, close-packed, crowded, condensed; Latin: spissus) in the music theory of Antiquity is a structural property of any tetrachord in which a composite of two smaller intervals is less than the remaining (incomposite) interval.
The term is derived by analogy from the 20th-century use of the word "tetrachord". Unlike the tetrachord and hexachord , there is no traditional standard scale arrangement of three notes, nor is the trichord necessarily thought of as a harmonic entity.
Design elements are the basic units of any visual design which form its structure and convey visual messages. [1] [2] Painter and design theorist Maitland E. Graves (1902–1978), who attempted to gestate the fundamental principles of aesthetic order in visual design, [3] in his book, The Art of Color and Design (1941), defined the elements of design as line, direction, shape, size, texture ...