Modal chord progression and tritone substitution?



Asked by: Melissa Robinson

Tritone substitution relies on the juxtaposition of the 3rd and b7 of two chords. So, in key C, the dominant G7 will have Db7 as its tts. G7 is G B D F, whereas Db7 is Db F Ab Cb. So, the F changes place (3rd>7th), and the same sounding B/Cb goes the other way.

How do you substitute tritone?





The tritone substitution can be performed by exchanging a dominant seventh chord for another dominant seven chord which is a tritone away from it. For example, in the key of C major one can use D♭7 instead of G7. (D♭ is a tritone away from G).

What scales go with tritone subs?

The Lydian Dominant scale (1, 2, 3, #4, 5, 6, b7, 8) can be used for dominant tritone substitutions (e.g. Eb7 and Eb Lydian Dominant).

What is a modal chord progression?

Modal chord progressions use the same harmonic structure as their parent major scale. Each mode has its own tonic chord rooted on its related degree of the parent scale. Chord progressions can be built around each mode to reaffirm their tonic or “home”.

What is the purpose of tritone substitution?

Through either a major chord or a minor chord. So tritone substitution is applied to these dominant seven courts anytime you see the dominant seven chord in a jazz. Standard what you can do is you can

How do you use Tritones to pass chords?





Right hand you're gonna go to b. And d. So it's. So we got f major seven e minor seven. All right kind of rolled off to the uh tritone for the e flat. All right and then c and g flat b and d.

How do you find the chord tritone?

Lets say you have a Bb7 chord. To find it’s tritone substitution you’d simply count up 6 half steps from there. 6 half steps higher than Bb is the note E. So, E7 is the tritone substitution of Bb7.

How do you practice Tritones?

Basically all you do is look directly across the circle. So for example if we look at G and then we look across to the side of the circle we have D flats. So their tritone substitutes.

What is a modal interchange?

A borrowed chord (also called mode mixture, modal mixture, substituted chord, modal interchange, or mutation) is a chord borrowed from the parallel key (minor or major scale with the same tonic).

How many keys can a tritone resolve to?

… produces C-Eb: …which is one of the most important intervals that make up the C minor triad: “Here’s The Resolution Of The Tritone In All Twelve Keys…”



What is a tritone chord?

A tritone is the distance between the root and the #4. So, C to F# is a tritone. Years ago you could get banned from the church for even playing a tritone due to its very “harsh” or dissonant sound. It used to be called the “devil’s interval”. Ironically, the tritone is the key ingredient in a Dominant 7th chord.

How do chord substitutions work?

“A chord substitution occurs when a chord is replaced by another that is made to function like the original. Usually substituted chords possess two pitches in common with the triad that they are replacing.”

Is there a tritone substitution for minor chords?

NO ! There’s a reason why the tritone sub works on a dominant chord. That is because the 3rd and 7th are the same (just inverted function). But in a minor chord these two chords are just not the same.



Are diminished chords Tritones?

The minor sixth, dominant seventh, half-diminished, and diminished seventh chords are examples of tritonic chords and are considered to be harmonically unstable because when they are played, they have the tendency to resolve to a stable chord.

What is a backdoor 2 5?

So the back door to five is called four – seven – called flat seven seven up a tone – called one it is non diatonic it can actually be thought of as modal interchange.

What is a bVII7 chord?

Simply that the bVII7 chord is nothing more than a Dominant chord (7) that is built on the bVII degree of the key (Flat Seven aka the Subtonic). In a Major key, bVII is just a half-step below vii. If we are in the key of C, the bVII7 chord is Bb7.

What is a backdoor dominant chord?

1. A dominant 7th chord whose root is a whole-step below the target chord. The “target chord” is the chord the backdoor chord resolves to, and it’s often a major 7th chord. Additionally, the target chord is also often – but not always – the tonic (I) chord of the song.