To describe this, Western music theory has developed the practice of numbering chords using Roman numerals to represent the number of diatonic steps up from the tonic note of the scale.Ĭommon ways of notating or representing chords in Western music (other than conventional staff notation) include Roman numerals, the Nashville Number System, figured bass, chord letters (sometimes used in modern musicology), and chord charts. Although any chord may in principle be followed by any other chord, certain patterns of chords are more common in Western music, and some patterns have been accepted as establishing the key ( tonic note) in common-practice harmony-notably the resolution of a dominant chord to a tonic chord.
One example of a widely used chord progression in Western traditional music and blues is the 12 bar blues progression.
#Ii analyzing seventh chords in musical contexts series#
Chords with more than three notes include added tone chords, extended chords and tone clusters, which are used in contemporary classical music, jazz and almost any other genre.Ī series of chords is called a chord progression. In tonal Western classical music (music with a tonic key or "home key"), the most frequently encountered chords are triads, so called because they consist of three distinct notes: the root note, and intervals of a third and a fifth above the root note. For many practical and theoretical purposes, arpeggios and other types of broken chords (in which the chord tones are not sounded simultaneously) may also be considered as chords in the right musical context. Guitarist performing a C chord with G bassĪ chord, in music, is any harmonic set of pitches consisting of multiple notes (also called "tones") that are sounded simultaneously, or nearly so. For other uses, see Chord (disambiguation). This article is about pitch simultaneity and harmony in music.
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