music Music is the arrangement of sound to create some combination of Musical form, form, harmony, melody, rhythm, or otherwise Musical expression, expressive content. Music is generally agreed to be a cultural universal that is present in all hum ...

, the dominant is the fifth

scale degree In music theory, the scale degree is the position of a particular note on a scale relative to the tonic—the first and main note of the scale from which each octave is assumed to begin. Degrees are useful for indicating the size of intervals ...

() of the

diatonic scale In music theory a diatonic scale is a heptatonic scale, heptatonic (seven-note) scale that includes five whole steps (whole tones) and two half steps (semitones) in each octave, in which the two half steps are separated from each other by eith ...

. It is called the ''dominant'' because it is second in importance to the first scale degree, the tonic. In the movable do solfège system, the dominant note is sung as "So(l)". The triad built on the dominant note is called the dominant chord. This chord is said to have dominant

function Function or functionality may refer to: Computing * Function key, a type of key on computer keyboards * Function model, a structured representation of processes in a system * Function object or functor or functionoid, a concept of object-orie ...

, which means that it creates an instability that requires the tonic for resolution. Dominant triads,

seventh chords A seventh chord is a chord consisting of a triad plus a note forming an interval of a seventh above the chord's root. When not otherwise specified, a "seventh chord" usually means a dominant seventh chord: a major triad together with a minor ...

, and ninth chords typically have dominant function. Leading-tone triads and leading-tone seventh chords may also have dominant function.

Dominant chords

music theory Music theory is the study of theoretical frameworks for understanding the practices and possibilities of music. ''The Oxford Companion to Music'' describes three interrelated uses of the term "music theory": The first is the "Elements of music, ...

, the dominant triad is a

major chord In music theory, a major chord is a chord (music), chord that has a root (chord), root, a major third, and a perfect fifth. When a chord comprises only these three notes, it is called a major Triad (music), triad. For example, the major triad bui ...

, symbolized by the

Roman numeral Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, ea ...

"V" in the

major scale The major scale (or Ionian mode) is one of the most commonly used musical scales, especially in Western music. It is one of the diatonic scales. Like many musical scales, it is made up of seven notes: the eighth duplicates the first at doubl ...

. In the

natural minor scale In Western classical music theory, the minor scale refers to three scale patterns – the natural minor scale (or Aeolian mode), the harmonic minor scale, and the melodic minor scale (ascending or descending). These scales contain all th ...

, the triad is a

minor chord In music theory, a minor chord is a chord that has a root, a minor third, and a perfect fifth. When a chord comprises only these three notes, it is called a minor triad. For example, the minor triad built on A, called an A minor triad, has pit ...

, denoted by "v". However, in a minor key, the seventh scale degree is often raised by a

half step A semitone, also called a minor second, half step, or a half tone, is the smallest musical interval commonly used in Western tonal music, and it is considered the most dissonant when sounded harmonically. It is defined as the interval between ...

( to ), creating a

. These chords may also appear as

: typically as a

dominant seventh chord Domination or dominant may refer to: Society * World domination, structure where one dominant power governs the planet * Colonialism in which one group (usually a nation) invades another region for material gain or to eliminate competition * Ch ...

, but occasionally in minor as a

minor seventh chord In music, a minor seventh chord is a seventh chord composed of a root note, a minor third, a perfect fifth, and a minor seventh (1, 3, 5, 7). In other words, one could think of it as a minor triad with a minor seventh attached to ...

v⁷ with passing function: : As defined by the 19th century musicologist Joseph Fétis, the ''dominante'' was a seventh chord over the first note of a descending perfect fifth in the '' basse fondamentale'' or root progression, the

common practice period In Western classical music, the common practice period (CPP) was the period of about 250 years during which the tonal system was regarded as the only basis for composition. It began when composers' use of the tonal system had clearly supersede ...

dominant seventh he named the ''dominante tonique''. Dominant chords are important to cadential progressions. In the strongest cadence, the

authentic cadence In Western musical theory, a cadence () is the end of a phrase in which the melody or harmony creates a sense of full or partial resolution, especially in music of the 16th century onwards.Don Michael Randel (1999). ''The Harvard Concise Dict ...

(example shown below), the dominant chord is followed by the tonic chord. A cadence that ends with a dominant chord is called a ''

half cadence In Western musical theory, a cadence () is the end of a phrase in which the melody or harmony creates a sense of full or partial resolution, especially in music of the 16th century onwards.Don Michael Randel (1999). ''The Harvard Concise Dic ...

'' or an "imperfect cadence". : \new PianoStaff << \new Staff << \new Voice \relative c'' \new Voice \relative c'' >> \new Staff << \new Voice \relative c' \new Voice \relative c' >> >>

Dominant key

The dominant key is the key whose tonic is a

perfect fifth In music theory, a perfect fifth is the Interval (music), musical interval corresponding to a pair of pitch (music), pitches with a frequency ratio of 3:2, or very nearly so. In classical music from Western culture, a fifth is the interval f ...

above (or a

perfect fourth A fourth is a interval (music), musical interval encompassing four staff positions in the music notation of Western culture, and a perfect fourth () is the fourth spanning five semitones (half steps, or half tones). For example, the ascending int ...

below) the tonic of the main key of the piece. Put another way, it is the key whose tonic is the dominant scale degree in the main key. If, for example, a piece is written in the key of

C major C major is a major scale based on C, consisting of the pitches C, D, E, F, G, A, and B. C major is one of the most common keys used in music. Its key signature has no flats or sharps. Its relative minor is A minor and its parallel min ...

, then the tonic key is C major and the dominant key is

G major G major is a major scale based on G (musical note), G, with the pitches G, A (musical note), A, B (musical note), B, C (musical note), C, D (musical note), D, E (musical note), E, and F♯ (musical note), F. Its key signature has one sharp (music ...

since G is the dominant note in C major. Harmonic axis in C major and minor

sonata form The sonata form (also sonata-allegro form or first movement form) is a musical form, musical structure generally consisting of three main sections: an exposition, a development, and a recapitulation. It has been used widely since the middle of t ...

in major keys, the second subject group is usually in the dominant key. Music which modulates (changes key) often modulates to the dominant key. Modulation to the dominant often creates a sense of increased tension; as opposed to modulation to the

subdominant In music, the subdominant is the fourth tonal degree () of the diatonic scale. It is so called because it is the same distance ''below'' the tonic as the dominant is ''above'' the tonicin other words, the tonic is the dominant of the subdomina ...

(fourth note of the scale), which creates a sense of musical relaxation.

In non-Western music

The dominant is an important concept in

Middle Eastern music The various nations of the region include the Arabic-speaking countries of the Middle East, the Iranian traditions of Persia, the Jewish music of Israel and the diaspora, Kurdish music, Armenian music. Azeri Music, the varied traditions of Cyp ...

. In the Persian Dastgah,

Arabic maqam In traditional Arabic music, maqam (, literally "ascent"; ') is the system of melodic modes, which is mainly melodic. The word ''maqam'' in Arabic means place, location or position. The Arabic ''maqam'' is a melody type. It is "a technique ...

and the

Turkish makam The Turkish makam ( Turkish: ''makam'' pl. ''makamlar''; from the Arabic word ''maqām'' ) is a system of melody types used in Turkish classical music and Turkish folk music. It provides a complex set of rules for composing and performance. Each ...

, scales are made up of trichords, tetrachords, and pentachords (each called a ''

jins In traditional Arabic music theory, a jins (, pl. ) is a set of three, four, or five stepwise pitches used to build an Arabic ''maqam'', or melodic mode. They correspond to the English terms trichord, tetrachord, and pentachord. A ''maqam'' is ...

'' in

Arabic Arabic (, , or , ) is a Central Semitic languages, Central Semitic language of the Afroasiatic languages, Afroasiatic language family spoken primarily in the Arab world. The International Organization for Standardization (ISO) assigns lang ...

) with the tonic of a maqam being the lowest note of the lower jins and the dominant being that of the upper jins. The dominant of a maqam is not always the fifth, however; for example, in

Kurdish music Kurdish music (, or ''مۆسیقای کوردی'') refers to music performed in the Kurdish languages and Zaza-Gorani languages. The earliest study of Kurdish music was initiated by the renowned Armenian priest and composer Komitas in 1903, wh ...

and

Bayati Bayati () is one of the oldest forms of Azerbaijani folk poetry. A bayati consists of four lines, each of which has seven syllables. The rhyme scheme is AABA. Anonymous bayati have been collected as folk wisdom in editions such as {{langx, az, ...

, the dominant is the fourth, and in maqam Saba, the dominant is the minor third. A maqam may have more than one dominant.

References

{{chords Diatonic functions 5

Dominant chords

Dominant key

In non-Western music

See also

References