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Other chord qualities such as major sevenths, suspended chords, and dominant sevenths use familiar symbols: 4 Δ 7 5 sus 5 7 1 would stand for F Δ 7 G sus G 7 C in the key of C, or E ♭ Δ 7 F sus F 7 B ♭ in the key of B ♭. A 2 means "add 2" or "add 9". Chord inversions and chords with other altered bass notes are notated analogously to ...
The value of the two products in the chord theorem depends only on the distance of the intersection point S from the circle's center and is called the absolute value of the power of S; more precisely, it can be stated that: | | | | = | | | | = where r is the radius of the circle, and d is the distance between the center of the circle and the ...
The concept of harmonic function originates in theories about just intonation.It was realized that three perfect major triads, distant from each other by a perfect fifth, produced the seven degrees of the major scale in one of the possible forms of just intonation: for instance, the triads F–A–C, C–E–G and G–B–D (subdominant, tonic, and dominant respectively) produce the seven ...
Equal chords are subtended by equal angles from the center of the circle. A chord that passes through the center of a circle is called a diameter and is the longest chord of that specific circle. If the line extensions (secant lines) of chords AB and CD intersect at a point P, then their lengths satisfy AP·PB = CP·PD (power of a point theorem).
In practice, in a minor key, the third of the dominant chord is often raised by one semitone to form a major chord (or a dominant seventh chord if the seventh is added). In addition, the seventh degree of the major scale (i.e. the leading tone) forms a diminished chord (vii o). [4]
Chord names and symbols (popular music) Chromatic mediant; Common chord (music) Diatonic function; Eleventh chord; Extended chord; Jazz chord; Lead sheet; List of musical intervals; List of pitch intervals; List of musical scales and modes; List of set classes; Ninth chord; Open chord; Passing chord; Primary triad; Quartal chord; Root (chord ...