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Third (chord)
In a chord, the third factor is the note three scale degrees above the root (including the root itself in the count). For instance, in a C major triad, E is the third factor.
: \new Staff { \override Score.TimeSignature.stencil = ##f \time 4/4 \set Score.tempoHideNote = ##t \tempo 1 = 20
\new Voice { \voiceOne \relative c' { 1 } }
\new Voice { \voiceOne \shiftOff \relative c' { \override NoteHead.color = #red e1 } } }
When the third is the bass note (i.e., the lowest note) of the triad or seventh chord, the chord is in first inversion.
Use
Conventionally, the third is third in importance to the root and fifth, with the third in all primary triads (I, IV, V and i, iv, v) being either major or minor. In jazz chords and theory, the third is required due to it determining chord quality.
The third in both major and augmented chords is major (E in C) and the third in both minor and diminished chords is minor (E in C).
Notes
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
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