Jermaine Griggs & Chuku Onyemachi
QUICK REFERENCE ON
Diminished Seventh
Chords
CHAPTER 1 The Diminished Seventh Chord Defined
The diminished seventh chord is the seventh degree chord of the [harmonic] minor scale. In the previous quick reference guide, we studied the halfdiminished seventh chord, which is the seventh degree chord of the major scale . In this guide, we are studying the diminished seventh chord, which is the seventh degree of the minor scale . Owing to the limitations or shortcomings of the natural minor scale, we are going to be exploring the chord formation of the diminished seventh chord using the harmonic minor scale. Using the A harmonic minor scale:
...as a reference, the diminished seventh chord is the chord of the seventh degree (which is G# in this case.) If you use my pickskip technique, you can easily fish out the notes of the chord of the seventh degree. Here we go... Pick G#:
...skip A, pick B:
…skip C, pick D:
…skip E, and pick F:
If you put together all the notes that we have picked, we'll have G#, B, D, and F (the G# diminished seventh chord). Now if we transpose G# diminished seventh chord to C, we'll have: C, Eb, Gb, and Bbb Considering that my chord share tool is not able to write double flats [and double sharps] yet, you'll permit me to represent the C diminished seventh chord as:
C, Eb, Gb, and A. Substituting Bbb with A is not just because they are enharmonically equivalent but because it makes the spelling simpler. I said this to say that I will not be strict with the proper spelling of chords that we always emphasize. Before we get into the next chapter, always remember that... The diminished seventh chord is the seventh degree chord of the minor key while the halfdiminished seventh chord is the seventh degree chord of the major key.
CHAPTER 2 Breakdown Of The Diminished Seventh Chord
In this chapter, we are breaking down the diminished seventh chord into smaller harmonic fragments known as intervals. These intervals are the building blocks of this chord. Quick Tip : If you want to have a proper understanding of a chord, break it down into intervals. These smaller fragments (intervals) will help you understand the distinct harmonic characteristics of the chord. So let’s look at the intervals that the G# diminished seventh chord can be broken down into. From G# to B:
...is a minor third . From G# to D:
...is a diminished fifth .
From G# to F:
...is a diminished seventh . Put together, the diminished seventh chord has three intervallic components: ● ● ●
The minor third The diminished fifth The diminished seventh interval
Let’s subject these intervallic components to further analysis... #1 The minor third interval The quality of the third in a chord determines the quality of that chord. The major third makes a major chord quality while the minor third makes a minor chord quality. Considering that the diminished seventh chord has a minor third, it is of a minor quality. #2 The diminished fifth interval The diminished fifth interval is one the earliest harsh intervals to be discovered and therefore is synonymous with dissonance in music. Heck, it was even called diabolus in musica (the devil in music) so many centuries ago. For all intents and purposes, the diminished fifth interval represents instability and tension . Therefore, chords that contain the diminished fifth interval tend to resolve to chords that contain the perfect fifth interval. Note: The perfect fifth interval is considered as a universally consonant interval.
Alright, let’s get on to the next intervallic component, which is the diminished seventh interval. #3 The diminished seventh interval Permit me to use the C diminished seventh interval as a reference in this segment. The major seventh interval in the key of C consists of the first and seventh scale tones C and B:
...respectively. Lowering the B note [by a half step] to Bb, produces C and Bb the minor seventh interval. If we lower the Bb by another half step, this will produce C and Bbb the diminished seventh interval. Interestingly, the diminished seventh interval not only looks like, but sounds like the major sixth interval even though they differ in spelling. Let me reiterate that I'll use the major sixth interval to substitute the diminished seventh interval for simplicity’s sake.
"So put together, how do these three intervallic components contribute to the diminished seventh chord?" Quality: The quality of third determines its quality. In this case, it starts out minor. Stability: The quality of fifth determines the stability of a chord. Owing to the fact that the diminished seventh chord has the diminished fifth, it is considered very dissonant and unstable. Usage: The diminished seventh chord contains the diminished seventh interval a rare interval. So the diminished seventh chord contains two dissonant intervallic components; the diminished seventh and the diminished fifth. Let's now get into its chord formation.
CHAPTER 3
Alternative Approaches To The Formation Of The Diminished Seventh Chord Defined
In this segment, we're covering the chord formation of the diminished seventh chord. Like I promised in the beginning, I'll be giving you various techniques and approaches to its chord formation. To get started, we will be exploring the scale approach before we consider other alternative techniques like the interval and chordal approaches.
Scale Approach to the Formation of the Diminished Seventh Chord The scale approach to the formation of the diminished seventh chord involves the use of the octatonic scale, which we’ve covered in a previous lesson. So I suggest that you read my post on the octatonic scale before you continue. One of the easiest ways to form a chord using any given scale is the pickskip technique. Here's how it works...
Pick the note on the keyboard that you desire to form the diminished seventh chord on, then pick and skip the notes of the diminished (octatonic) scale. To form the C diminished seventh chord using the C octatonic scale:
...all you need to do is pick C:
…skip D and pick Eb:
…skip F and pick Gb:
…skip G# and pick A:
If we put together all the notes that we’ve picked so far, we'll have the C diminished seventh chord:
Submission: We're using the octatonic scale because it is easier than the seventh mode of the harmonic minor scale. Irrespective of the scale we use, we will arrive pretty much at the same answer. The only thing is that we'll be challenged with the issue of proper spelling, which I submitted in the beginning that we are not going to stick to the strict spelling of the chords. Therefore, in this lesson, we'll be substituting the seventh mode of the harmonic minor scale with the octatonic (diminished) scale. Now to take us to the next level, we will be exposing ourselves to the interval approach to the chord formation of the diminished seventh chord.
Interval Approach to the Formation of the Diminished Seventh Chord In the beginning of this lesson, we broke down the diminished seventh chord into three intervals: the minor third, the diminished fifth, and the diminished seventh intervals, respectively. However, in this chord formation approach, we'll be substituting the diminished seventh interval (CBbb) with the major sixth interval (CA).
So instead of having the minor third, diminished fifth and diminished seventh interval, we’ll have the minor third, diminished fifth, and major sixth interval as the intervallic components of the diminished seventh chord. Putting the minor third, diminished fifth, and major sixth intervals together in any key that you are in produces the diminished seventh chord. "How do I form the minor third interval?" The relationship between the tonic (first tone) and the flattened (lowered) third degree of any given major scale produces a minor third interval. "How do I form the diminished fifth interval?" The relationship between the tonic and the flattened fifth degree of any given major scale produces the diminished fifth interval. "How do I form the major sixth interval?" The relationship between the tonic and the sixth degree of any given major scale produces the major sixth interval. Let's put these components together in the key of D. The minor third interval from D is F:
...F is lower than the third degree of the D major scale (F#) by a half step.
The diminished fifth interval from D is Ab:
...Ab is lower than the fifth degree of the D major scale (A) by a half step. The major sixth interval from D is B:
...B is the sixth degree of the D major scale. Putting all the intervals in one octave produces the D diminished seventh chord:
...made up of D, F, Ab, and B. Attention: The proper spelling of the D diminished seventh chord is D, F, Ab, and Cb. However, we are not sticking to the strict spellings of the chords because we want to keep it simple. However, the cheat sheet contains all correct spellings.
Chord Approach to the Formation of the Diminished Seventh Chord If you are familiar with the diminished triad that we covered in a previous week in our FREE 16week chord revival program, then the diminished seventh chord is within your reach. It's as easy as adding the sixth tone of the major scale from the root of the diminished triad to produce the diminished seventh chord. So if you are familiar with the C diminished triad:
...which consists of C, Eb, and Gb, all you need to do is to add the sixth tone of the C major scale (which is A):
...to the C diminished triad:
...to produce the C diminished seventh chord:
Doing this in all the keys will produce the diminished seventh chord in all the keys.
Final Words The diminished seventh chords is one tritonic chord you can reckon with and this makes it useful in the formation of dominant chords. The diminished seventh chord contains two mutual tritones. Using the C diminished seventh chord as an example:
There are two mutual tritones in the C diminished seventh chord... Tritone #1
CGb:
Tritone #2 EbA:
When our president said this chord sounds scary in GospelKeys 300 (where he broke down how to apply the diminished seventh chord), he meant it. If the interval was known as the "devil in music" centuries ago, what would you call two of them in one chord? We'll talk more about the diminished seventh chord later. For now, make the most of what we've covered and don't forget to download our free chord cheat cheat. P.S. Here are the diminished seventh chords in all keys...
C diminished seventh:
C# diminished seventh:
D diminished seventh:
D# diminished seventh:
E diminished seventh:
F diminished seventh:
F# diminished seventh:
G diminished seventh:
G# diminished seventh:
A diminished seventh:
A# diminished seventh:
B diminished seventh:
Diminished Seventh Chord
QUICK REFERENCE ON DIMINISHED SEVENTH CHORDS
Workbook 126 Exercises
YOU WILL BE GIVEN A NOTE. DETERMINE THE MINOR THIRD INTERVAL FROM THE NOTE GIVEN. Question: Given the root note in the key of Db, dot its minor third interval.
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Question #1 Question: Given the C note, dot its minor third interval.
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Question #2 Question: Given the F note, dot its minor third interval.
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Question #3 Question: Given the Bb note, dot its minor third interval.
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Question #4 Question: Given the Eb note, dot its minor third interval.
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Question #5 Question: Given the Ab note, dot its minor third interval.
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Question #6 Question: Given the Db note, dot its minor third interval.
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Question #7 Question: Given the Gb note, dot its minor third interval.
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Question #8 Question: Given the B note, dot its minor third interval.
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Question #9 Question: Given the E note, dot its minor third interval.
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Question #10 Question: Given the A note, dot its minor third interval.
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Question #11 Question: Given the D note, dot its minor third interval.
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Question #12 Question: Given the G note, dot its minor third interval.
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Question #13 Question: Given the C note, dot its minor third interval.
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Question #14 Question: Given the G note, dot its minor third interval.
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Question #15 Question: Given the D note, dot its minor third interval.
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Question #16 Question: Given the A note, dot its minor third interval.
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Question #17 Question: Given the E note, dot its minor third interval.
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Question #18 Question: Given the B note, dot its minor third interval.
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Question #19 Question: Given the Gb note, dot its minor third interval.
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Question #20 Question: Given the Db note, dot its minor third interval.
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Question #21 Question: Given the Ab note, dot its minor third interval.
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Question #22 Question: Given the Eb note, dot its minor third interval.
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Question #23 Question: Given the Bb note, dot its minor third interval.
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Question #24 Question: Given the F note, dot its minor third interval.
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YOU WILL BE GIVEN A NOTE. DETERMINE THE DIMINISHED FIFTH INTERVAL FROM THE NOTE GIVEN. Question: Given the Db note, dot its diminished fifth interval.
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Question #25 Question: Given the C note, dot its diminished fifth interval.
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Question #26 Question: Given the F note, dot its diminished fifth interval.
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Question #27 Question: Given the Bb note, dot its diminished fifth interval.
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Question #28 Question: Given the Eb note, dot its diminished fifth interval.
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Question #29 Question: Given the Ab note, dot its diminished fifth interval.
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Question #30 Question: Given the Db note, dot its diminished fifth interval.
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Question #31 Question: Given the Gb note, dot its diminished fifth interval.
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Question #32 Question: Given the B note, dot its diminished fifth interval.
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Question #33 Question: Given the E note, dot its diminished fifth interval.
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Question #34 Question: Given the A note, dot its diminished fifth interval.
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Question #35 Question: Given the D note, dot its diminished fifth interval.
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Question #36 Question: Given the G note, dot its diminished fifth interval.
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Question #37 Question: Given the C note, dot its diminished fifth interval.
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Question #38 Question: Given the G note, dot its diminished fifth interval.
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Question #39 Question: Given the D note, dot its diminished fifth interval.
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Question #40 Question: Given the A note, dot its diminished fifth interval.
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Question #41 Question: Given the E note, dot its diminished fifth interval.
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Question #42 Question: Given the B note, dot its diminished fifth interval.
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Question #43 Question: Given the Gb note, dot its diminished fifth interval.
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Question #44 Question: Given the Db note, dot its diminished fifth interval.
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Question #45 Question: Given the Ab note, dot its diminished fifth interval.
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Question #46 Question: Given the Eb note, dot its diminished fifth interval.
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Question #47 Question: Given the Bb note, dot its diminished fifth interval.
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Question #48 Question: Given the F note, dot its diminished fifth interval.
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YOU WILL BE GIVEN A NOTE. FORM THE SIXTH INTERVAL FROM THE NOTE GIVEN. Question: Given the Db note, dot its major sixth interval.
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Question #49 Question: Given the C note, dot its major sixth interval.
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Question #50 Question: Given the F note, dot its major sixth interval.
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Question #51 Question: Given the Bb note, dot its major sixth interval.
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Question #52 Question: Given the Eb note, dot its major sixth interval.
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Question #53 Question: Given the Ab note, dot its major sixth interval.
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Question #54 Question: Given Db note, dot its major sixth interval.
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Question #55 Question: Given the Gb note, dot its major sixth interval.
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Question #56 Question: Given the B note, dot its major sixth interval.
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Question #57 Question: Given the E note, dot its major sixth interval.
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Question #58 Question: Given the A note, dot its major sixth interval.
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Question #59 Question: Given the D note, dot its major sixth interval.
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Question #60 Question: Given the G note, dot its major sixth interval.
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Question #61 Question: Given the C note, dot its major sixth interval.
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Question #62 Question: Given the G note, dot its major sixth interval.
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Question #63 Question: Given the D note, dot its major sixth interval.
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Question #64 Question: Given the A note, dot its major sixth interval.
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Question #65 Question: Given the E note, dot its major sixth interval.
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Question #66 Question: Given the B note, dot its major sixth interval.
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Question #67 Question: Given the Gb note, dot its major sixth interval.
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Question #68 Question: Given the Db note, dot its major sixth interval.
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Question #69 Question: Given the Ab note, dot its major sixth interval.
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Question #70 Question: Given the Eb note, dot its major sixth interval.
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Question #71 Question: Given the Bb note, dot its major sixth interval.
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Question #72 Question: Given the F note, dot its major sixth interval.
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YOU WILL BE GIVEN THE OCTATONIC SCALE IN ANY KEY TO FORM A DIMINISHED SEVENTH CHORD. Question: Given the Db octatonic scale, derive the Db diminished seventh chord.
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Question #73 Question: Given the C octatonic scale, derive the C diminished seventh chord.
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Question #74 Question: Given the F octatonic scale, derive the F diminished seventh chord.
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Question #75 Question: Given the Bb octatonic scale, derive the Bb diminished seventh chord.
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Question #76 Question: Given the Eb octatonic scale, derive the Eb diminished seventh chord.
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Question #77 Question: Given the Ab octatonic scale, derive the Ab diminished seventh chord.
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Question #78 Question: Given the Db octatonic scale, derive the Db diminished seventh chord.
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Question #79 Question: Given the Gb octatonic scale, derive the Gb diminished seventh chord.
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Question #80 Question: Given the B octatonic scale, derive the B diminished seventh chord.
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Question #81 Question: Given the E octatonic scale, derive the E diminished seventh chord.
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Question #82 Question: Given the A octatonic scale, derive the A diminished seventh chord.
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Question #83 Question: Given the D octatonic scale, derive the D diminished seventh chord.
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Question #84 Question: Given the G octatonic scale, derive the G diminished seventh chord.
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Question #85 Question: Given the C octatonic scale, derive the C diminished seventh chord.
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Question #86 Question: Given the G octatonic scale, derive the G diminished seventh chord.
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Question #87 Question: Given the D octatonic scale, derive the D diminished seventh chord.
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Question #88 Question: Given the A octatonic scale, derive the A diminished seventh chord.
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Question #89 Question: Given the E octatonic scale, derive the E diminished seventh chord.
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Question #90 Question: Given the B octatonic scale, derive the B diminished seventh chord.
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Question #91 Question: Given the Gb octatonic scale, derive the Gb diminished seventh chord.
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Question #92 Question: Given the Db octatonic scale, derive the Db diminished seventh chord.
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Question #93 Question: Given the Ab octatonic scale, derive the Ab diminished seventh chord.
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Question #94 Question: Given the Eb octatonic scale, derive the Eb diminished seventh chord.
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Question #95 Question: Given the Bb octatonic scale, derive the Bb diminished seventh chord.
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Question #96 Question: Given the F octatonic scale , derive the F diminished seventh chord.
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YOU WILL BE GIVEN THE DIMINISHED TRIAD IN A KEY. DETERMINE THE MAJOR SIXTH INTERVAL OF THAT KEY.
Question: Given the Db diminished triad, dot the Db major sixth interval.
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Question #97 Question: Given the C diminished triad, dot the C major sixth interval.
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Question #98 Question: Given the F diminished triad, dot the F major sixth interval.
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Question #99 Question: Given the Bb diminished triad, dot the Bb major sixth interval.
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Question #100 Question: Given the Eb diminished triad, dot the Eb major sixth interval.
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Question #101 Question: Given the Ab diminished triad, dot the Ab major sixth interval.
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Question #102 Question: Given the Db diminished triad, dot the Db major sixth interval.
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Question #103 Question: Given the Gb diminished triad, dot the Gb major sixth interval.
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Question #104 Question: Given the B diminished triad, dot the B major sixth interval.
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Question #105 Question: Given the E diminished triad, dot the E major sixth interval.
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Question #106 Question: Given the A diminished triad, dot the A major sixth interval.
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Question #107 Question: Given the D diminished triad, dot the D major sixth interval.
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Question #108 Question: Given the G diminished triad, dot the G major sixth interval.
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Question #109 Question: Given the C diminished triad, dot the C major sixth interval.
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Question #110 Question: Given the G diminished triad, dot the G major sixth interval.
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Question #111 Question: Given the D diminished triad, dot the D major sixth interval.
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Question #112 Question: Given the A diminished triad, dot the A major sixth interval.
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Question #113 Question: Given the E diminished triad, dot the E major sixth interval.
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Question #114 Question: Given the B diminished triad, dot the B major sixth interval.
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Question #115 Question: Given the Gb diminished triad, dot the Gb major sixth interval.
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Question #116 Question: Given the Db diminished triad, dot the Db major sixth interval.
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Question #117 Question: Given the Ab diminished triad, dot the Ab major sixth interval.
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Question #118 Question: Given the Eb diminished triad, dot the Eb major sixth interval.
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Question #119 Question: Given the Bb diminished triad, dot the Bb major sixth interval.
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Question #120 Question: Given the F diminished triad, dot the F major sixth interval.
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Question #121 Question: Given the C diminished triad, dot the C major sixth interval.
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Question #122 Question: Given the G diminished triad, dot the G major sixth interval.
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Question #123 Question: Given the D diminished triad, dot the D major sixth interval.
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Question #124 Question: Given the A diminished triad, dot the A major sixth interval.
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Question #125 Question: Given the E diminished triad, dot the E major sixth interval.
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Question #126 Question: Given the B diminished triad, dot the B major sixth interval.
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Diminished Seventh Chord
QUICK REFERENCE ON DIMINISHED SEVENTH CHORDS
Workbook 126 Answers
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