Tag Archives: tritone substitution

Why Chord Substitutions Are Holding You Back!

Chord Substitutions 101 – Tritone Subs

The first chord substitution you learn is usually the tritone substitution, which I sometimes get the impression is taught because theory teachers don’t know what to talk about in the lessons.

A tritone substitution is exchanging a dominant for the dominant a tritone away because the two chords share the same core notes: 3rd and 7th.

So in a II V I in C major EXAMPLE the G7 is replaced with Db7. To give you this nice progression:

And you can see how the same tritone is in the two dominant chords which is why it is possible to switch them.

The best way to understand stuff like this is usually to hear it used in a song.

The basic version:

and with a tritone sub:

And this demonstrates two things: Tritone substitution(or any other chord substitution) doesn’t really make any sense if you don’t understand how it works with the chords around it. You are making the substitution to get the progression to sound different, and you need to hear it in the context to really get what is going on, otherwise, you are in this case, just playing an E7 (b-roll: E7!) and E7 sounds differently in a Blues in E compared to A Jazz ballad in Eb

The other thing you want to notice is that Tritone substitution usually works better when the dominant resolves, so a tritone substitute of a backdoor dominant is probably not going to sound fantastic.

Chord Substitution 102 – Major and Minor + Tritone 2.0

There are probably 3 more chord substitutions that are very common and that you want to know when you are at the stage of just swapping out chords and not really trying to think in harmony as a movement, which we will get to later.

#1 Tritone Dom instead of a II V in minor.

The first one is if you have a minor II V I like for example What Is This Thing Called Love

and you then replace the m7b5 chord with a tritone substitute resolving to the V, so in this case, Db7 moving down to C7:

The next two are about messing with how the ear expects to hear either major or minor in a II V I and then you do the opposite.

#2 a m7 instead of a IIø

If the ear expects to hear a dark-sounding m7(b5) chord EXample and instead you play a much brighter sounding chord that is a m7 with a 9th and or an 11th then that is a really nice surprise. Example

A good example could be Beautiful love. The first few bars usually sound like this:

And you can get a much brighter sound by using an Em7(11) like this:

This is pretty common and also something you can use in a solo, and there are actually even a few spots where Parker does this.

#3 a m7(b5) instead of a m7 chord

The other way around is also really nice! If you have a II V I in a song

and then make it darker by playing:

Beyond Chord Substitution

Jazz Harmony space B-roll (chord symbols flying in space?)

I guess it is sort of ironic that I started out the video by teaching chord substitutions when I actually don’t want you to think like that, so let’s go beyond that, first a bit further and then into Uncharted Jazz Harmony Space (B-roll)

When you can only think in terms of chord substitutions then you can switch one chord out for another chord, but it actually becomes a lot better if you start to learn to work with entire progressions and come up with other ways of harmonizing that section of the melody.

This was something I first started to get into when I was studying at the conservatory and had lessons with Peter Nieuwerf and Eric Gieben who showed me some exciting ways to work much more freely with harmony, and as you will see, some of these don’t make any sense if you think of them as of chord substitutions.

Let me show you an example, that sort of goes against one of the things that makes reharmonization most effective. I am going to assume that you know what Blue Moon sounds like so that you can hear how these chords are different, and then I am going to explain what is going on.

You can hear how this still works, and still has a flow but also how far away you can go on a very simple turnaround. And actually, you can approach it in a much more open way but I’ll get to that in a bit.

The first thing I changed was turning the Am7 chord into a C#dim.

That is just a secondary dim chord and not something special. In Bar 3, there is a lot more happening, because here the long G in the melody was original on Cmaj7 Am7, but now it is harmonized with Abmaj7 and Dbmaj7 leading into the Dm7 G7,

and Abmaj7 and Dbmaj7 are not exactly substitutions of Cmaj7 Am7, you could at most call them suspensions but since they don’t resolve back to C then that is also not really a description of what is going on.

The best way to see it is probably just to see it as something that

A/ sounds good with the melody

B/ fits in the key and the chord progression

Here they work because they are both minor subdominant chords in C major and of course sound great under the G in the melody.

In Bar 5 The Cmaj7 Am7 is turned into Bb7(#11) A7.

Again Bb7 is not really a substitution for Cmaj7 or related to Cmaj7. Instead, it is an example of choosing harmony that focuses on a different aspect of the turnaround: The chord that was there: Cmaj7 is just a tonic chord and it is a resolution when you land there, but the song keeps on moving, and the Bb7 only makes sense here because it keeps on moving to A7 and in that way is both a bit surprising but makes sense as the music continues. So you can look at the turnaround and think:

A- It is a tonic chord and then it moves on

B- It is a progression that needs to resolve in 2 bars.

And here I am using Bb7 because that works with the melody and really helps push towards the resolution in bar 7. In this last turnaround, I also changed the Dm7 to a D7, but that is just because I think that sounds a little better than the m7 chord with the melody.

So the big difference here is that I am much more free to use whatever chords I can get to work with the melody and the chord progression, not just looking at a chord and then thinking what chord fits instead of this.

This can give you A LOT of freedom, but before I get into that then let’s look at a way to set up a reharmonization so that it really stands out.

The Easiest Way To Make It Work

Timing is incredibly important for reharmonization and chord substitution. When you are playing a song and changing the harmony then what you are really working with is a way to go against the listener’s expectation. That is also what you hear in the Blue Moon example where I first play a turnaround in C to establish the song and then I start to change the chords.

If you start with changing the chords then there is less of an expectation and nothing for the listener to be surprised by:

And of course, that is possible but it is not nearly as strong. If you start listening for how people use reharmonziations then this is more common than you think, try to listen to Gilad Hekselman’s recording I Should Care where the 2nd half of the ABAC form starts with an F#ø Fm6 Em7 A7 because that is a new way to color the melody when it repeats in the 2nd half of the form. This is by the way a very common reharmonization used on a ton of songs, but let’s get into some more uncommon progressions and different sounds.

Everything Is Allowed!

Until now, I was just showing you some things that were changing a chord here and there and creating some beautiful sounds, but you can also just leave out most of the chords and completely re-imagine the chord progression, using “atonal” ideas and Giant Steps.

To have a place to start check out the first few bars of You Don’t Know What Love Is:

Let’s say that you played that as the first A and now you can change things up in the 2nd A:

Here I am starting with a different chord that is essentially the same Fm6 with a Bb in the Bas and then I sculpt the rest of the chord progression around an ascending bass line ending with Gbmaj7 instead of Db7, but this would really work well moving on to Gø that would follow it.

This next example is borrowing some ideas from Coltrane’s Giant Steps circle:

Giant Steps don’t really exist in minor, and actually, you don’t want to be tied down by some sort of system when doing this, so I am being very liberal with how I incorporate the chords, and I still want to play the song.

The idea I use is to start on Fm6 and then through E7alt go to Amaj7 which is pretty far away from Fm, and to move on to Db major and finally take another route to end on Bmaj7(#11) instead of Db7.

You can probably tell how this is really more about using the Coltrane cycle as a source of inspiration and not at all a system, but like this, the melody is still intact and you get something different.

A great place to put this to use is to work on chord melody:

How Chord Melody Will Help You Master Important Skills

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The 5 Types of Dominant Chord You Want To Know

Music Is More Than A Row Of Letters

But, what this tells you is that in a lot of music, chords are not isolated things. A piece of music rarely sounds like unrelated harmony next to each other, you immediately start to connect the chords and hear some chords as tension and others as a resolution.

I am going to make a statement that sounds sort of ridiculous in a bit!

If you want to solo over a chord progression then you want to understand not only what chord is there, but also how it relates to the song and the surrounding chords because that will make it a lot easier to improvise over it and it will help you hear the harmony that you are soloing over.

If you just zoom in on each chord then that is like reading a sentence but only spelling each word. If you spell this sentence you may miss an important part of what is being said:

Your Lunch Will Kill You

Another thing that is true both for music and for language is that you can say the same thing with other words:

That Sandwich Is Poison

Hearing Chord Progressions

With experience, you start to hear the progression, similar to how you can probably imagine how a 12-bar blues sounds and play that in your head like an audio track.

So what you REALLY want to avoid is that you just look at the chord symbol and ignore everything else. To compare this to language. If you are reading the words of a sentence but only focus on how each word is spelled then you ignore what is actually being said in the sentence, and if you think about it, then the important thing about the sentence is probably the meaning and it could be said using other words as well. This is also true for, at least, most music: A Chord is a part of a context and you want to understand what that context is.

And here is where I get to make this crazy statement:

“Not all dominant chords are dominant”

But throughout this video, you will see how this is maybe not that crazy.

#1 Most of the time Dominant chords are Dominants

The strongest connection or resolution in harmony is a dominant resolving to a tonic, so V – I. By resolving then I mean that the chord on the 5th note of the scale resolves to the root chord.

This is also what I used in the intro, but there I didn’t let it resolve.

You have two main variations, the V chord is either in a major or in a minor key, where a major dominant will have a 13th, and a 9th and resolves to a maj7

The minor version is usually the dominant coming from the harmonic minor scale with a b9 and b13 (PLAY). But there are a lot of other options as well.

Let’s go over another very common dominant before getting to the dominant chord that is actually subdominant.

#2 And These are Dominants As Well

The next type of dominant chords are the ones that you come across that resolve but just not to the tonic chord, the secondary dominants and if you analyze harmony then you write a V in brackets.

I [V] II V

Cmaj7 A7 Dm7 G7

Some of the common ones would be the ones that take us to II, like this A7: Cmaj7 A7 Dm7 G7

The V of V: D7 Dm7 G7

Or if you have a song that moves to the IV: Cmaj7 C7 Fmaj7.

These follow the same guidelines as the regular dominants so the extensions depend on whether the target chord is major or minor, so a if the target chord is major it will have a 9th and a 13th and if it is resolving to a minor chord then it will have a b9 and a b13.

Let’s have a look at some less obvious options.

#3 This Dominant is Subdominant

In this example, you hear a C7 resolving to Fmaj7 which is just a secondary dominant, but the Bb7 resolving to Cmaj7 is not like that. But it does sound like it resolves.

In this case, the Bb7 is a subdominant chord. In fact, it is just an Fm6 with another bass note.

You can hear how this progression moves in the same way:

So the Bb7, which is often referred to as the backdoor dominant resolves like an Fm6 to Cmaj7 so it is a subdominant chord.

In terms of improvising then mostly you would play it as a Lydian dominant, which here means using F melodic minor, again a connection with IVm in the key.

#4 The Disguised Dominant

When you have a dominant chord that resolves by moving down a half step then this is referred to as a tritone substitution. In fact, this is the dominant of the key in disguise, I’ll show you that in a bit.

When you analyze this dominant you write add sub in front of the dominant

II subV I which means that it is the tritone substitute of the dominant.

In the progression above you would expect a G7: Dm7 G7 Cmaj7, and the reason why a tritone substitute works is that if you look at G7 next to a Db7 then you can see that they share the core part of the chord: 3rd and 7th. And a Db7 can be seen as a G7 with a lot of alterations with a Db in the bass.

You can come across tritone substitutions for secondary dominants as well. Below is an example of how is a substitute for the A7 in a C major turnaround.

#5 You Never See This But Is Good To Know

The last dominant chord is also in fact subdominant since it is derived from a subdominant diminished chord.

The most famous example of this chord is probably in Out Of Nowhere, where you have this progression:

You also find this in the original Star Trek Theme.

In this case, the Eb7 is in fact an inversion of another chord, namely a #IV double diminished.

Constructing the Double Diminished Chord

In the key of G major, the #IV is C#

The #IV diminished would be C# E G Bb

So the #IV double diminished is C# Eb G Bb which is then played with the Eb in the bass.

The Other Name

There is another way of describing it where you focus on it being minor subdominant and then end up calling it a German augmented 6th chord.

I call it #IV because I think that describes the sound better and links it to other chords in the key in a useful way.

Besides Out Of Nowhere you see this chord in Angel Eyes and My Foolish Heart, but it is not terribly common.

Soloing over the chord

In Jazz, you mostly play it as a Lydian dominant chord, but often it is also turned into a II V which is also very common in Out Of Nowhere giving you Gmaj7 Gmaj7 Bbm7 Eb7.

How Well Do You Know Your Diminished Chords

It may be useful for you to dive into the different types of diminished chords if you want to understand Jazz harmony better. Often people try to reduce diminished chords to dominants, but often that doesn’t really work that well and help you describe how it sounds. This video will show you how to understand them.

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Autumn Leaves Reharmonization – How To Make It Sound Fresh

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Content:

00:00 Intro

00:44 Level 1 – The Basic Changes

01:50 Level 2 – A few Tritones Subs and a Surprise

03:22 Level 3 – Attack of the Chromatic II Vs

04:27 Level 4 – Dysfunctional Harmony

06:08 Level 5 – The Aliens Stole My Lunch Money and gave them to John Coltrane

07:44 Searching for Beautiful Chord Progressions

07:53 Like the video? Check out my Patreon page.

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Minor II V I options – Melodic Minor, Phrygian Chords and Tritone Substitutions

The minor II V I can be a difficult chord progression to play on and have a varied vocabulary on. In this video I am going to go over how you can approach it in several different ways with Phrygian Chords, Melodic minor and Tritone Substitutions.

In the video I will demonstrate the different Minor II V I approaches and talk about how to use them both in terms of comping, voicing choices et and also soloing and arpeggios.

I also talk a bit about what will fit with the melody of a piece.

Content of the video:

0:14 Minor II V I The Progression in this video

0:42 Basic II V I – Demonstration

1:03 Scales, Voicings, extensions

2:31 Arpeggios for a m7b5 chord

4:33 Locrian natural 2/ Locrian #2 – Demonstration

4:54 Melodic minor for m7b5

5:15 Chord voicings for m9(b5)

5:54 How does it fit the melody?

6:48 Arpeggios from Melodic minor

7:50 Tritone sub – Demonstration

8:12 Using a Tritone sub dom7th instead of the IIm7b5

8:26 The progression with these chords

8:56 When does it fit the melody?

9:41 Voicing Options and considerations

9:57 The bonus Blue note!

11:51 Phrygian Chord – Demonstration

12:10 What is a Phrygian Chord

13:19 Comping a Phrygian sound

14:06 Soloing on a Phrygian Chord

14:36 How you can use them and where

14:55 Tritone II V – Demonstration

15:17 Tritone substitution of the entire cadence

16:23 Strategies for soloing over a tritone sub

17:27 Borrowing II from Major – Demonstration

17:49 How it works – modal interchange

18:13 Using the brighter sounding II chord

19:34 Voicing considerations

19:56 Soloing over the borrowed II chord

20:43 Do you have a great reharmonization or scale choice for a minor II V I?

21:26 Like the videos? Support me on Patreon!

Jazz Chords 10 variations of a I VI II V turnaround

The I VI II V is one of the most common progessions in jazz. In this lesson I am going to go over 10 variations of it and discuss how some of the different substitutions work and how you put them together.

The Turnaround

As I mention in my first lesson on turnarounds and the one on Rhythm changes a I VI II V is in fact an embellished version of a I V progression. It’s very good to keep this in mind, not only for high tempo solos but also just to understand what the basic structure and the point of the turnaround is.

All the examples in this lesson are made on a turnaround in C major.

The basic I VI II V is shown in example 1:

The first chord that we use a substitution for is the Am7. Since Am7 to Dm7 is a sort of dominant root movement we can change the Am7 into an A7. The A7 to Dm7 is then an auxiliary dominant resolving to a minor chord so the scale that works for that is D minor harmonic. The modal name for that type of dominant sound is A7(b9,b13).

A few variations on the VI chord

This is shown in example 2:

Since we need to move from C to Dm7 we can also choose to substitue the Am7 with a dim passing chord. In this case it will be a C#dim that will function the same as the A7 in example 2, and you should use the same scale to play over it or add extensions to it. The reason for using the C# dim is to get a nice chromatic stepwise bass line.

Changing the tonic chord

Now that we have a few options for the VI we can start using a substitute for the I chord. The most common version of this is to use the III chord instead of the I chord. For soloing there is very little difference between the two, but in a progression the III chord is not nearl as much of a resting point as the I chord. Furthermore it moves to the VI resolving a 5th down so it adds more forward motion in the bass as well.

You’ll notice that the III does not have a natural 9th in the chord. This is because that is a note that is not in the scale so it will sound a little out of place. In some situations it is ok to use it and in others it may clash with the melody or the soloist.

Altered dominants

To make the pull back to the I chord at the end of the progression we can alter the V. There are two options for this, you can borrow the dominant from C harmonic minor which gives us a G7(b9,b13) or simply use the altered scale (Ab melodic minor).

The Em7 is pulling the progression forward where the I is making it rest, making the Em7 a dominant chord is away to make that pull stronger. A dominant is always more unstable sounding and especially since it is not in the key it will give us the feeling that we want to move forward.

You should notice that you need an E7alt or E7(b9,b13) to not clash with the melody that you’d expect on a turnaround in C.

In example 6 I am using the E7, and I also changed the Dm7 to a D7 to get a complete chain of dominants that is pulling to the tonic.

Tritone substitution

Since we can use an E7alt we can also use the tritone substitution of that chord. This gives us a bass note that is not even in the key which makes it even more unstable than the E7 and gives it much more forward direction. This is a personal favourite of mine, it isn’t used that often as a turnaround in an AABA form, but it does happen quite often in places where there is an extension at some point.

Bb7 is a tritone substitution so we would consider it a lydian dominant

Now we have a few variations of dominant chains. First we can add a tritone substitution for the G7: Db7.

And if we don’t use the Bb7 but use the E7 and a tritone substitue for A7: Eb7. Then we get this chromatically descending line in example 9

Ladybird Turnaround and the gateway to Giant Steps

The final example is a little left by itself. You can look at this turnaround as a gateway to Giant Steps. In the lady bird turnaround usually you use the I chord, and the tritone subs for A7 and G7. The Dm7 is replaced with an Abmaj7, and the way this works is that we let the Eb7 resolve as a normal dominant to Abmaj7 instead of as a tritone resolving to Dm7. Abmaj7 is related to C major as a bVI borrowed from C minor. You’ll find that in some standards as well.

To shortly connect this to Giant steps you should notice that we are in C and that we modulate down to Ab. If you continue that cycle you get a Giant Steps progression in the key of C:

Cmaj7 Eb7 Abmaj7 B7 Emaj7 G7 Cmaj7

I don’t know if this is where Coltrane got the idea, but it is certainly a possibility.

That was 10 variations of the turnaround. As you can see you can easily make more different variation, but they will start to resemble each other a bit more.

I think it is important to be able to recognise that something is just a turnaround and to know the different versions so that you can easily sum up pieces that are mostly turnarounds and that you already reading the piece have a sense of how it works.

If you want to see some examples of lines on these turnarounds then leave a comment on YouTube or social media and let me know!

Take Your Comping Up A Few Levels

Comping – Putting It All Together

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Turnarounds part 3 – I bIII7 II Valt

The 3rd lesson in my series on turnaround is about how you deal with tritone substitution and altered dominants. I’ll try to give you an idea about what scales and arpeggios to play, and in the Etude I’ll also try to give demonstrate how I use it, notes to aim for and other useful tips.

The Turnaround

The main turnaround that this lesson is about is the first 2 bars of example 1, where the IV is replaced by a tritonesubstitution: Db7. If you are familiar with my lessons on altered dominants and tritone substitution you will know that the progression is almost identical to the one shown in the next line where I use G7 instead of Db7, the same holds for the F7 which could be replaced by a B7.

Let’s first go over the scales: Since the progression as a whole is in the key of Bb we use the Bb major scale on the Bbmaj7 chord and the Cm7 chord.

For the Db7: A tritone substitution is approached as an Lydian Dominant, so that would make the root of the chord the 4th degree in a melodic minor scale. That means that we get Ab melodic minor. You should notice that Ab melodic minor is the same as G altered too.

The same is true for the F7alt: F# melodic minor, and it could be seen as B lydian dominant too.

Now that we have scales for all the chords we can chose a few arpeggios for each one. For the Bbmaj7, Db7 and Cm7 chords I am using the arpeggio of the chord it self and an arpeggio that is a diatonic 3rd above or below the root of the chord. This is because that way this arpeggios will have a lot of common notes with the chord and fit it very well.

For the F7 we have the issue that the diatonic chord in the scale is an Fm7b5 which is not that useful or strong on an F7. The way I chose to fix this was to use the diatonic arps of the tritone substitute (B7, the 2nd arpeggio) and the 3rd of B7 (Ebm7b5). Those both contain both 3rd and 7th so that they convey the sound of the F7 really well.

The Etude

In my experience you learn more from sitting down and trying to work on writing strong lines than just copying other peoples lines, so you should consider trying to analyze the things that I do in this etude and use them in you own lines. That way you really train your ear and your taste, two very important aspects of improvising.

The first turnaround is simply starting with a Bb major triad and the works up the scale to hit the Ab on the Db7. On the Db7 the line consists of an Abm triad which is a good upperstructure for that chord (try playing a Db7(9) chord). On the Cm7 the melody descends down an Ebmaj7 arpeggio and continues down an GbmMaj7 arpeggio on the F7alt.

I often use the “Coltrane” patter in fast moving progressions like this. In the 2nd turnaround the melody on the Bb is an F major Coltrane pattern: F G A C which works very well with a Bbmaj7. On the Db7 it continues with a smal scale run that leads in to the Cm7 arpeggio in inversion over the Cm7. The line on the F7alt is really a sort of F# minor cliche melody that is a minor version of the Coltrane pattern, relative to F# it is 1,2,b3 and 5. Here it’s played descending.

The Gb of the F7alt resolves nicely to an F on the next Bbmaj chord. The melody continues up a Dm7 arpeggio in inversion. The Db7 line is using a Bmaj7 shell voicing arpeggiated with in a melodic way. The idea on the Cm7 and F7 is connected by using the Coltrane minor pattern on the Cm7 (1,b3,4,5) and then continuing with that idea using the B major Coltrane pattern on the F7. This is a good example how the interchanging between altered dominant and tritone substitute can give you some melodic ideas that you would maybe not otherwise arrive at.

On the last turnaround the Bbmaj7 line is a Dm triad which is followed by an Ab minor triad on the Db7. This time the Ab minor triad is played so that it resolves to the 5th of Cm7. On the Cm7 it is first ascending up an Ebmaj7 arp in inversion and then resolves down an Ebm7b5 on the F7alt and finally ending on the 3rd(D) of Bb.

As always you can download the examples I used as a pdf here:

Turnarounds part 3 – I bIII7 II Valt

I hope that you liked the lesson. If you have any questions or comments then feel free to leave them here or on the video. Please subscribe to my YouTube channel and feel free to connect with me via Instagram, Twitter Google+ or Facebook to keep up to date with new lessons, concerts and releases.

Tritone Substitution

Tritone substitution is a good way to add some new ideas to your II V I lines. It is very closely related to using altered dominants, but the fact that you think another chord will also give you some new melodic ideas. In this lesson I’ll try to briefly explain how it works and also what scales and arpeggios to use before I put that to use in some examples.

Tritone Substitution – Scales and Arpeggios

Let’s first look at what a tritone substitution is, in this lesson I’ll do my examples in the key of G major, though it works just as well in minor of course.

The easy way to look at this is to notice that with shell voicings for dominants (see 3rd bar of example 1) you can change the root but keep the rest of the chord, so the 3rd and 7th of a dominant chord are shared between two roots a tritone substitution. In this example that shows that the tritone substitution of D7 is Ab7, and if you play through example 1 you can hear how it will work in the II V I cadence. You will also probably notice that it is not that effective if the dominant does not resolve to a I chord.

So now we have a new option for a chord and a way to place it in a tonal context. The next thing we need to look at is which scales we can use when improvising over it. In example 2 I’ve listed first the key of G major and then the Eb Mel minor and Db Major scale. THe G major scale is mostly there for a reference to the key and not for the Ab7 chord. If you’ve checked out my lesson: Melodic Minor – Lydian Dominants You could observe that the Ab7 is a dom 7th chord that does not resolve a 4th up (or 5th down) so in that way it is a lydian dominant and you can use Eb melodic minor over it. That is the 2nd scale in example 2. Another option would be to just observe that Ab7 is the dominant in Db Major and therefore we can use that scale over it. This is the 3rd scale in example 2.

Now we have the scales let’s just quickly go over a few arpeggios. In example 3 I basically move up in diatonic 3rds and list the arpeggio for each note, which is the first way you should look for arpeggios over a chord in any scale, then you need to evaluate each note and try to deal with avoid notes as landing notes when you use the arpeggios. In the example I have only used the Eb Mel min scale, but if you want to do the same.

Example lines with Tritone Substitutions

The first example line is a fairly basic line just to show what the sound of the Ab7 chord can already do in the line. The Am7 line is an Em7 arpeggio (arpeggio from the 5th of Am) followed by a scale run. On the Ab7 I first play a pattern of the Ab7 arpeggio and then another scale run ending with a chromatic encirclement of the 5th(D) of Gmaj7 where it resolves.

In the 2nd example I am using the Ab7 chord as if it is from the Db major scale. Which gives us a Db in the scale which is a bit further away from the G major tonality. On the Am7 chord the line is a melodic sequence of a Cmaj7 arpeggio which sort of changes into an Em pentatonic scale run. On the Ab7 I first play a Ebm7 arpeggio and then run down the scale before resolving to the 3rd (B) of Gmaj7.

The 3rd example again using the Eb minor melodic on the Ab7 chord. The line over the Am7 is constructed by first an Em7 shell voicing and then an Am7 triad in 1st inversion. On the Ab7 I first play a pattern of the GbMaj7(#5) arpeggio and then descend through a Cm7b5 arpeggio before resolving to the 5th (D) of Gmaj7.

If you want to download the examples for later study I have them here as a PDF:

Tritone Substitution

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