Secondary Leading-Tone Chords
Dr. B Music Theory


If the triad to be tonicized is:

For example in the key on C, for degree IV we can use: vii°/IV, vii°7/IV or viiØ7/IV.

In the minor key there is no:

Spelling

  1. Name root of chord to be tonicized.
  2. Go down minor 2th.
  3. Using tht note as the root spell vii°, vii°7 or viiØ7.

Analysing

  1. Is the altered chord °, °7 or Ø7?
  2. Name the note a m2 above the root of the altered chord.
  3. Would a major or minor triad built on that note be a diatonic triad?

Voice leading

Harmonic Progression

!% ['M6','m','vi','t'],['A4','Ø7','viiØ7/V','D2'],['P1/P5','','I|64','d'],['P5','7','V7','D'],['P1','','I','T']

!% ['P5','7','V7','D'],['A5','°7','vii°7/vi','D2'],['M6','m','vi','t'],['P5/M3','7','V|65','D'],['P1','','I','T']

Let's write progression #1 in key of C

C% ['M6','m','vi','t'],['A4','Ø7','viiØ7/V','D2'],['P1/P5','','I|64','d'],['P5','7','V7','D'],['P1','','I','T']
Q:1/1=40 %%piano3+1CD K:C [V:C] "Am"x | "F#Ø7"x | "C/G"x | "G7"x | "C"x |] [V:D] "vi"x | "viiØ7/V"x | "C64"x | "V7"x | "I"x |] [V:S] c | c | c | !r>(!!red!B | !r>)!!blue!c |] [V:A] !blue!A | A | !blue!G | !n>(!!blue!G | !n>)!G |] [V:T] E | E | E | !o>(!!orange!F | !o>)!E |] [V:B] !blue!A, | ^F, | !blue!G, | !blue!G, | !blue!C, |]

Let's write progression #2 in key of D

D% ['P5','7','V7','D'],['A5','°7','vii°7/vi','D2'],['M6','m','vi','t'],['P5/M3','7','V|65','D'],['P1','','I','T']
Q:1/1=40 %%piano2+2CD K:D [V:C] "A7"x | "A#°7"x | "Bm"x | "A7/C#"x | "D"x |] [V:D] "V7"x | "vii°7/vi"x | "vi"x | "V65"x | "I"x |] [V:S] !blue!A | G | F | !o>(!!orange!G | !o>)!F |] [V:A] E | E | D | E | !blue!D |] [V:T] C | C | !blue!B, | A, | A, |] [V:B] !blue!A,, | ^A,, | !blue!B,, | !r>(!!red!^C, | !r>)!!blue!D, |]
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