These are things to think about as a player and even more so as a composer or arranger. December-January 2014. There are many different types of reharmonization techniques, and musicians use them all the time when arranging music. Db7 has the notes Db, F, Ab and B. One of the most common Chord Substitutions in Jazz is the Tritone Substitution.This is a way of substituting V7 chords. That is the golden rule! ... and with the correct resolution of the true tritones this desire is totally satisfied. Tritone Substitution Part XII Replacing a dominant seventh (or a minor seventh) chord by a dominant seventh chord whose root is a tritone away is referred to as a tritone (or flatted fifth) substitution. The tritone substitution is a dominant, or secondary dominant 7th chord whose root is a … How long do you want the tritone substitution to last? Given the progression I ⇨ VI7 ⇨ II7 ⇨ V7 ⇨ I, each of the chords VI7, II7 and V7 can be thought of as the “V” dominant chord of the next chord in the progression. Tritone substitutions refer to changing a dominant chord for another dominant chord a tritone away. In C Maj, instead of bars 1-5 looking like this: C7 ⇨ C7 ⇨ C7 ⇨ C7 ⇨ F7, it would instead look like C7 ⇨ C7 ⇨ C7 ⇨ Gb7 ⇨ F7. Db7 is then the tritone substitute for the G7. The rules behind “tritone substitution” say that you can replace this G dominant7 with the dominant chord that is 3 whole steps away (or a “tritone” away). The tritone substitution is a common technique used in Jazz Theory to add some color to a dominant seventh chord. Your email address will not be published. We measure distance on the piano in intervals. Using this substitution gives us this progression: Imaj7 (CMaj7) ⇨ IVmaj7 (Fmaj7) ⇨ iimin7 (Dmin7) ⇨ bII7 (Db7) ⇨ I (C Maj): The G7 chord contained the tritone B – F, which resolved to C – E in the C Maj chord. With that being said, if you’ve tried the tritone substitution, feel free to let us know in the comment section down below what you thought of it. In order for us to understand why a tritone substitution works as a technique in general, it’s important to know and understand what is going on theory wise. The tritone substitution is one of the most common chord and improvisation devices in jazz. A tritone substitution would occur in bar 4, when the I7 chord is about to transition to the IV7 chord, changing that I7 chord to a bV7 chord. If you don’t, the audience may grow tired of hearing this technique being over used or misused and consider the piece of music to simply not be good or distasteful. The tritone substitute typically uses a 7th chord for the V chord whose root is 3 whole steps from the root of the V chord. The reason a tritone substitution works harmonically, and the reason one can easily be swapped for another, is that dominant 7th chords that are a tritone apart share the same tritone notes within the chords themselves. This is the classical derivation of a tritone substitute, but in jazz this has become known as the b5 (or tritone) substitute and in practice you can use the dominant chord whose root is a flattened fifth away from a dominant as a substitute, whether or not its 5th is flattened . I'll show you how we actually can alter some of these common tones in the video … Another spot is at 0:58, with the progression Eb6 ⇨ E7 ⇨ Eb7, as E7 is the tritone sub for Bb7: In the track “Dizzy Atmosphere” by Dizzy Gillespie, bars 17-25 contain the chord progression D7 ⇨ Db7 ⇨ C7 ⇨ B7 ⇨ Bb7 ⇨ A7 ⇨ Ab7. So a G7 would become a D♭7 (the root note is a tritone away). For example, in the Jazz standard “In the Mood”, you see an Ab6 ⇨ Bdim7 ⇨ Bbm7 ⇨ Eb7 progression (listen at 0:48), with the B chord acting as a tritone sub for the “V of Bb”, F7. First, however, let’s go over what a tritone is. What exactly is a … That’s why those 3rd and 7th notes are most important. Tritone substitution is the substitution of one chord (almost always a dominant 7th of some sort) for one with a root a tritone away. We all know the ii-V-I progression is the most fundamental harmonic building block of a standard jazz tune, i.e., Dm7-G7-CMaj7 in the key of C major or Dm7b5-G7-Cm7 in C minor. Tritone substitution is a very cool jazz chord substitution. For example, in the … Really, that’s where the color and tension are created, no matter what voicing you use as a piano player. So, if we had a D7 chord in a progression, a Tritone Substitution would switch in a G#7 chord in its place, and a Bb7 could be switched to an E7. It can be used to create a descending bass line in a II – V – I progression. Consider a “ii-V-I” progression in the key of C major (Dmin7 – G7 – Cmaj7). So, if we had a D7 chord in a progression, a Tritone Substitution would switch in a G#7 chord in its place, and a Bb7 could be switched to an E7. Thanks so much for this! In each diatonic scale there is only one tritone, and it occurs between the fourth and seventh degrees of the scale, so in a C major scale this would be between F and B. As you can see above, there is no note Db in the C Maj scale, but the note D is the 2nd scale degree, and is written as ii (or II if Maj). Thanks for stopping by and if you have any questions get in touch! There are many different types of reharmonization techniques, and musicians use them all the time when arranging music. For example : playing Db7 over G7. A tritone is an interval made up of three tones, or six semitones. 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