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Encyclopedia > Diminished octave
major seventh
Inverse minor second
Name
Other names -
Abbreviation M7
Size
Semitones 11
Interval class 1
Just interval 15:8
Cents
Equal temperament 1100
Just intonation 1088

A major seventh is the larger of two commonly occurring musical intervals that span seven diatonic scale degrees. The prefix 'major' identifies it as being the larger of the two (by one chromatic semitone); its smaller counterpart being a minor seventh. The major seventh is abbreviated as M7 and its inversion is the minor second. It occurs most commonly built on the root of major triads, resulting in the chord type also known as major seventh. It has been suggested that this article be split into multiple articles accessible from a disambiguation page. ... A minor second is the smallest of three commonly occuring musical intervals that span two diatonic scale degrees; the others being the major second and the augmented second, which are larger by one and two semitones respectively. ... A semitone (also known in the USA as a half step) is a musical interval. ... In music, specifically, musical set theory an interval class, or unordered pitch-class interval, is an interval measured by the distance between its two pitch classes ordered so they are as close as possible. ... In music, just intonation, also called rational intonation, is any musical tuning in which the frequencies of notes are related by whole number ratios; that is, by positive rational numbers. ... The cent is a logarithmic unit of measure used for musical intervals. ... An equal temperament is a musical temperament, or system of tuning, in which an interval, usually the octave, is divided into a series of equal steps (equal frequency ratios). ... In music, just intonation, also called rational intonation, is any musical tuning in which the frequencies of notes are related by whole number ratios; that is, by positive rational numbers. ... In music theory, an interval is the difference (a ratio or logarithmic measure) in pitch between two notes and often refers to those two notes themselves (otherwise known as a dyad). ... In music theory, a diatonic scale (from the Greek diatonikos, to stretch out; also known as the heptatonia prima; set form 7-35) is a seven-note musical scale comprising five whole-tone and two half-tone steps, in which the half tones are maximally separated. ... In music, a chromatic semitone is the amount by which any note is raised by the addition of a sharp, or lowered by the addition of a flat. ... The musical interval of a minor seventh the first note (the root or tonic) and the seventh in a minor scale. ... It has been suggested that this article be split into multiple articles accessible from a disambiguation page. ... A minor second is the smallest of three commonly occuring musical intervals that span two diatonic scale degrees; the others being the major second and the augmented second, which are larger by one and two semitones respectively. ... A seventh chord is a chord consisting of a triad plus a note forming an interval of a seventh above the chords root. ...

A major seventh in just intonation most often corresponds to a pitch ratio of 15:8 or 1:1.875, or various other ratios, while in an equal tempered tuning it is a ratio of 1:211/12 (approximately 1.887), or 1100 cents, 11.731 cents sharp of 15:8. In music, just intonation, also called rational intonation, is any musical tuning in which the frequencies of notes are related by whole number ratios; that is, by positive rational numbers. ... Equal temperament is a scheme of musical tuning in which the octave is divided into a series of equal steps (equal frequency ratios). ... The cent is a logarithmic unit of measure used for musical intervals. ... Figure 1. ...

The major seventh is considered one of the most dissonant intervals after its inversion the minor second. For this reason, its melodic use is infrequent in classical music and almost nonexistent in popular music. One piece that makes use of the major seventh is "The Hut on Fowl's Legs" from Mussorgsky's Pictures at an Exhibition. In music, a consonance (Latin consonare, sounding together) is a harmony, chord, or interval considered stable, as opposed to a dissonance, which is considered unstable. ... A minor second is the smallest of three commonly occuring musical intervals that span two diatonic scale degrees; the others being the major second and the augmented second, which are larger by one and two semitones respectively. ... Modest Petrovich Mussorgsky (Russian: , Modest PetroviÄ Musorgskij, French: ) (March 9/21, 1839 â€“ March 16/28, 1881), one of the Russian composers known as the Five, was an innovator of Russian music. ... Mussorgsky in 1874 Pictures at an Exhibition (Russian: , KartÃ­nki s vÃ½stavki â€“ VospominÃ¡niye o VÃ­ktore GÃ¡rtmane, Pictures from an Exhibition â€“ a Remembrance of Viktor Hartmann) is a famous suite of ten piano pieces composed by Modest Mussorgsky in 1874. ...

Under equal temperament this interval is enharmonically equivalent to a diminished octave (which has a similar musical use to the augmented unison). In music, an enharmonic is a note which is the equivalent of some other note, but spelled differently. ... This article is about the musical interval. ...

 Diatonic intervals edit Perfect : unison (0) | fourth (5) | fifth (7) | octave (12) Major : second (2) | third (4) | sixth (9) | seventh (11) Minor : second (1) | third (3)| sixth (8) | seventh (10) Augmented : unison (1) | second (3) | third (5) | fourth (6) | fifth (8) | sixth (10) | seventh (12) Diminished : second (0) | third (2) | fourth (4) | fifth (6) | sixth (7) | seventh (9) | octave (11) semitones of equal temperament are given in brackets

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