Because there are technically only 3 diminished chords, you have 8 differently named chords that are equal to 1 chord that you can switch between 4-8 different key signatures with (8 if you count both Major & Minor keys!). The pitches stay the same, the chord name changes. Note: I don't use Bbb dim because there is no such thing as a Bbb key since it would be the note A.Īlthough it may appear that there is 18 or 24 different diminshed chords by name(if you count the double sharps/flats) in fact there is really only 3 that exist if you respell the chords. A dim = A C Eb Gb = Bbb dim = Bbb Dbb Fbb Abbb A dim(Bbb) is basically a 3rd inversion(2) C dim. Ebdim is basically a 2nd inversion(4/3) C dim. (Dbb= C) An Eb dim has all the exact same pitches as a C dim because it's like playing a C dim in 1st inversion(6/5), but the notes are named differently because the root changes & the chords must always be written as Root/3rd/5th/7th even if you have to add double or triple sharps/flats to satisfy the chord spelling. This 2nd diagram shows that for example with a C dim chord (C Eb Gb Bbb) it is equal to a Ebdim because Eb dim is spelled Eb Gb Bbb Dbb. Double sharp/flat diminshed chords can be used to pivot, if the diminished chord in the scale you are pivoting to has the double sharp chord as it's ii☇ or vii☇ which is uncommon, but not impossible.Ĭ dim = Eb/D#dim = Gb/F# dim = Bbb/A dim C#/Dbdim = E dim = G dim = Bb/A#dim D dim = F dim = Ab/G#dim = Cb/B dim So basically this one diminished chord is also the same as 5-6 different diminished chords if you dont count the double #/b keys because they are enharmonically the same as other chords (Cx=D Ax=B) & can get messy when written in notes. Side note: There is only 23 different key signatures that exist.ĭ dim = D F Ab Cb (DFAbCb) E#dim = D E# G# B (E#G#BD) F dim = Ebb F Ab Cb (FAbCbEbb) G#dim= D F G# B (G#BDF) Abdim=Ebb Gbb Ab Cb (AbCbEbbGbb) A×dim= Cx E# G# A× (A×C×E#G#) Bdim = D F Ab B (BDFAb) C×dim= C× E# G# B (C×E#G#B) I made a couple diagrams awhile ago I can share to prove this claim. This might not sound real or make sense, but it is. To get technical there are only 3 diminished chords that actually exist! This is absolutely mind-blowing! Instead of 17-24 different chords to remember, you only need to remember 3 & you can switch between about 8 different keys with each chord if you count both major & minor keys.
I learned about pivoting with diminished chords my 4th semester of Music Theory & they are pretty insane.
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