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A major triad has a major third (M3) on the bottom, a minor third (m3) on top, and a perfect fifth (P5) between the outer notes. In harmonic analysis and on lead sheets, a C major chord can be notated as C, CM, CΔ, or Cmaj. A major triad is represented by the integer notation {0, 4, 7}.
Another variation of the major triad changes the order of the notes: For example, the C-major triad is often played as (C,G,E), where (C,G) is a perfect fifth and E is raised an octave above the perfect third (C,E). Alternative orderings of the notes in a triad are discussed below (in the discussions of chord inversions and drop-2 chords).
In music, triads are primarily built on the circle of thirds. In fact, by going progressively forward in sequence of the circle of thirds, many chords can be constructed. For example, in A major, the first notes in the cycle of thirds are A, C♯, and E, which is also the three notes present in the A major triad. [2]
Major-thirds tunings are unconventional open tunings, in which the open strings form an augmented triad. In M3 tunings, the augmented fifth replaces the perfect fifth of the major triad, which is used in conventional open-tunings. [1] For example, the C-augmented triad (C, E, G ♯) has a G ♯ in place of the C-major
For instance, the notation C/E bass indicates a C major triad in first inversion i.e. a C major triad with an E in the bass. Likewise the notation C/G bass indicates that a C major chord with a G in the bass (second inversion). See figured bass for alternate method of notating specific notes in the bass.
An interval is inverted by raising or lowering either of the notes by one or more octaves so that the higher note becomes the lower note and vice versa. For example, the inversion of an interval consisting of a C with an E above it (the third measure below) is an E with a C above it – to work this out, the C may be moved up, the E may be lowered, or both may be moved.
In a major key, the supertonic triad (ii) is minor, and in a minor key it is diminished. The dominant is, in its normal form, a major triad and commonly a dominant seventh chord . With the addition of chord alterations , substitutions , and extensions , limitless variations exist on this simple formula.
The first inversion of a chord is the voicing of a triad, seventh chord, or ninth chord in which the third of the chord is the bass note and the root a sixth above it. [1] In the first inversion of a C-major triad, the bass is E — the third of the triad — with the fifth and the root stacked above it (the root now shifted an octave higher), forming the intervals of a minor third and a minor ...