Extended Harmonies Types of Tertial Chords: Triads and Seventh Chords

Home , Augmented triad, Diminished triad, Eleventh, Eleventh chord, Major and minor, Ninth chord

music theory for musicians and normal people by toby w. rush

so far, we’ve talked about two Extended Harmonies types of tertial chords: triads and seventh chords. remember, tertial chords are chords constructed by stacking major and minor thirds!

now, there are four types of triads bbw bw w #w and eight types of seventh chords, diminishedw triad minorw triad majorw triad augmentedw triad even though common practice period composers only used five of them.

∫w bw bw w b # bb w bb w b w bw w w #w # w diminished diminishedw diminishedw minor minorw minor minorw major majorw minor majorw major augmentedw major augmentedw augmented seventh chord seventh chord seventh chord seventh chord seventh chord seventh chord seventh chord seventh chord

so that makes for twelve chord types so far... but what if we keep going? what other chord types can we make by stacking major and minor thirds? tertial chords with five, six and seven notes are called ninth chords, eleventh chords and thirteenth chords respectively.

suddenly the possibilities increase from twelve...... to 124! ∫w bw bw w bw w w #w bw w w #w w #w #w ‹ w b∫thew bb w b bw commonb w bw w w b w bw w w #w # w ## w ## diminished bdiminishedw diminishedb diminishedw gooddiminishedb minorw minor news:diminishedb minorw major minorb minorw minor minorb minorw major minorb majorw major minorbw major major minorw minor major minorw major major majorw major majorw major augmentedw augmentedw major augmented augmentedw augmented augmented diminishedw minorw ninth chordw ninth chordw ninthw chord ninthw chord ninthw chord augmentew d ninth chordw ninthw chord ninthw chord augmentedw majorw major augmentedw augmentedw doubly-augmented ninth chord ninthpractice chord period composers ninth chord ninth chord ninth chord # ninth chord ˙ ninth chord ninth chord only used these “extended ˙ harmonies” as diatonic & ˙ ∫∫w chords∫bw bbw on thebw dominant.bbw bw w #w bbw bw w #w w #w ˙ ##w #‹w bw ∫ bw ∫ bw b∫ w b bw bb w b bw bbw b w b w b#w ˙ b w w w ˙13 w w diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb w minor diminishedbw minor diminishedb w minor diminishedb w minor minor minorbw minor minorb minorw minor minorb minorw major ˙minor bminorw major minorb majorw major minorb majorw major minorb majorw minorb wmajor diminished diminished diminished minor diminishedw minor perfectw minor diminishedw minor perfectw major perfectw major augmentedw diminishedw perfectw perfectw augmentedw perfect G:augmented V augmented augmented augmented w w eleventh chord eleventhw chord eleventhw chord eleventhw chord doubly-augmentedw doubly-diminished eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord eleventh chord ˙ eleventh chord & ˙ # ˙ G: V11 bw bw w #wthese ware the#w #w ‹w w˙ #w ##w #‹w #w ‹w ‹w # w b wseriously:bw b w w w only# w # w #w˙ #w #w #w ###w ###w #‹#w #‹ major minorw minor major minorw minor major wminor major major minorw major major majorw major major majorw major majorw major major&w major augmentedw major augmentedw major augmentedw major augmentedw major augmented augmentedw augmented augmentedw augmented augmentedw augmented augmented diminishedw perfectw extendedperfectw augmentedharmoniesw perfect usedaugmented byaugmented augmented augmented majorw perfect˙ major waugmented augmented waugmented augmentedw augmented augmented augmented doubly-augmented doubly-augmented eleventh chord eleventh chord eleventh chord eleventh chord eleventhw chord eleventhw chord eleventhw chord doubly-augmentedw eleventh chord eleventh chord eleventh chordwhatdoubly-augmented about aeleventh fifteenth wchord doubly-augmentedw chord?doubly-augmentedw triply-augmented eleventh chord ˙9 eleventh chord eleventh chord eleventh chord eleventh chord common practice period composers. G: V try it: if you add another third 11 13 in fact, the v and v weren’t used on top of a thirteenth, you b∫w ∫muchw before∫w bthew romantic∫w bw era.bw w ∫w bw bw are wjust doublingbw thew root.w # w ∫∫ w ∫b w ∫b w bb w bb w b w bw bb w bb w b w so tertialbw harmonyw stopsw at#w 13! # ∫w b∫w b∫w b∫w b∫w b∫w b ∫w b∫ w b bw bbw b bw bb w bbw b bw bbw bb diminished diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb diminishedw diminishedb MINORw MINOR diminishedb MINORw MINOR diminishedb MINORw MINOR diminishedb MINORw MINOR diminishedb MINORw MAJOR diminishedb MINORw MAJOR diminishedb MINORw MAJOR diminishedb MINOR MAJOR diminished w diminishedw diminished diminishedw diminished diminishedw minor diminishedw minor diminishedw minor minor perfectw minor minor perfectw MAJOR DIMINISHED DIMINISHEDw DIMINISHEDw MINOR PERFECTw MINOR PERFECTw MAJOR PERFECT MINOR PERFECT MAJOR AUGMENTED MAJOR AUGMENTED AUGMENTED thirteenthw chord thirteenthw chord thirteenthw chord thirteenth chord doubly-diminished doubly-diminished diminished minor diminished thirteenth chord thirteenth chord thirteenth chord thirteenth chord thirteenth chord thirteenth chord thirteenth chord doubly-diminished diminished thirteenth chord thirteenth chord thirteenth chord thirteenth chord thirteenth chord

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