18.2: Secondary Diminished Chords in Major and Minor
18.2 Secondary Diminished Chords in Major and Minor
Below are the secondary diminished chords that occur in major and minor.
Notice that viiIIIvii∘/III in minor is not included because it is iiii∘. Notice also that vii ø IIIviiø7/IIIhas no accidentals—it is the same as ii ø iiø7 but functions differently. The ii ø iiø7 chord has pre–dominant function and progresses to VV whereas the vii ø IIIviiø7/III chord progresses to IIIIII.
Minor triads are tonicized by fully diminished seventh chords. Major triads are traditionally tonicized by half diminished seventh chords but can also be tonicized by fully diminished seventh chords.