Modal Interchange Chords in Major

Beef Up Your Chord Progressions With Modal Interchange Chords

“Modal Interchange” is a harmonic technique in which you borrow chords from parallel scales.
This allows you to add new harmonic colors in addition to the 7 chords of the key you are writing in.

Parallel scales are scales that start on the same root.


C Dorian, C Phrygian, C Lydian, C Mixolydian, C Aeolian, C harmonic minor, C melodic minor, etc….

This is different from relative scales, which are scales that share the same notes.


C major, A minor, D Dorian, E Phrygian, etc….

Modal interchange doesn’t deal with relative, but with parallel scales.

In recap:

What this means is that you’re for example writing a song in the key of C major, and you are using chords from a C minor scale (or any other C scale) in your C major song.
This opens up a whole new world of harmonic colors that you can beef up your songs with.

You can also use modal interchange in minor keys.
The principle is the same: you use chords from an A major scale (or from any A scale) in your A minor song.

SEE ALSO: Improvisation over Modal Interchange Chords

Improvisation over Modal Interchange chords
Improvisation over Modal Interchange chords

How & Why Does Modal Interchange Work?

One of the reasons why modal interchange works is that all modal interchange chords have the same “key center” because they are all borrowed from parallel scales.

Scales that all start on the same note are all in the same key:

    • A song written in a C major scale, is in the key of C
    • A song written in a C minor scale, is in the key of C (minor)
    • A song written in a C Dorian scale is in the key of C (Dorian)
    • A song written in the key of C Mixolydian, is in the key of C (Mixolydian), etc…

Because all modal interchange chords are related to the same key, there is a connectedness between the chords.
This is not just a random bunch of different chords thrown together.
That connectedness is created by nature that each chord is borrowed from a scale that starts on the same root.

Memorize All Following Modal Interchange Chords

The following list covers all the modal interchange chords used in major keys.
The listed Modal Interchange examples are given in the key of C major.
Learn and memorize the chord progression examples.

The given chord progressions showcase how the modal interchange is typically most commonly used. That isn’t to say that you can’t experiment or use the listed modal interchange chords more freely.
Memorize the chord progressions so you know the typical use of each modal interchange chord, then experiment to see how else you could use them.

  1. I-7 = Cm7 (Borrowed from C Aeolian)


    ||: Cmaj7 | Cm7 | Ebmaj7 | G7 :||

  2. IV-7 = Fm7 (Borrowed from C minor scale)


    ||: Cmaj7 | Fmaj7 | Fm7 | G7 :||

    The IV-7 chord is typically preceded by the diatonic Fmaj7 chord, but can also be used freely in the progression, as in the following examples:

    ||: Cmaj7 | Dm7 | Em7 | Fm7 :||
    ||: Cmaj7 | Fm7 | Cmaj7 | G7 :||

  3. V-7 = Gm7 (Borrowed from C minor scale and from C Mixolydian)


    ||: Cmaj7 | G7 | Gm7 | Fmaj7 | Fm7 | Em7 | Am7 | G7 | Cmaj7 :||

    The V-7 chord is typically preceded by the diatonic G7 chord, but can also be used freely in the progression, as in the following examples:

    ||: Cmaj7 | Gm7 | Fmaj7 | Dm7 :||
    ||: Cmaj7 | Gm7 | Dm7 | Am7 :||

    Following is not a good modal interchange example:

    ||: Cmaj7 | C-7 | F-7 | G-7 :||

    If you play too many modal interchange chords in series, it sounds like it modulated to the key of C minor, not like modal interchange chords.

  4. bIImaj7 = Dbmaj7 (Borrowed from C Phrygian)


    ||: Cmaj7 | Fmaj7 | G7 | Dbmaj7 :||

    Typically the bIImaj7 (Dbmaj7) chord always precedes the I (C, Cmaj7) chord.

  5. bIIImaj7 = Ebmaj7 (Borrowed from C Aeolian)


    ||: Cmaj7 | Ebmaj7 | Dm7 | Dbmaj7 :||
    ||: Cmaj7 | Dm7 | Ebmaj7 | G7 :||

  6. bVImaj7 = Abmaj7 (borrowed from C Aeolian)


    ||: Cmaj7 | G7 | Fmaj7 | Abmaj7 :||
    ||: Cmaj7 | G7 | Abmaj7 | Bb7 :||

  7. bVIImaj7 = Bbmaj7 (Borrowed from C Mixolydian)


    ||: Cmaj7 | G7 | Fmaj7 | Bbmaj7 :||

  8. IV7 = F7 (Borrowed from C Dorian)


    ||: Cmaj7 | Dm7 | F7 | Cmaj7 :||

    The IV7 typically resolves to I major.

  9. bVI7 = Ab7 (Borrowed from C Locrian)


    ||: Cmaj7 | Fmaj7 | Ab7 | Bb7 :||
    ||: Cmaj7 | Ebmaj7 | Ab7 | Cmaj7 :||

    In the following examples the Ab7 does not sound like a modal interchange chord but like a subV7/V (resolving down a half step to G7)

    ||: Cmaj7 | Ab7 | G7 | Cmaj7 :||
    ||: Cmaj7 | Dm7 | Ab7 | G7 :||

  10. bVII7 = Bb7 (Borrowed from C Aeolian)


    ||: Cmaj7 | G7 | Fmaj7 | Bb7 :||

  11. II-7b5 = Dm7b5 (Borrowed from C harmonic minor scale)


    ||: Am7 | Dm7b5 | G7b9 | Cmaj7 :||

    Typically precedes a V7b9 chord or even a regular V7 (without 9th).

  12. II-7b5 – V7b9 = D-7b5 – G7b9 (borrowed from C harmonic minor scale)


    Am7 | Dm7b5 | G7b9 | Cmaj7

    Primarily used as a substitution to a regular II-V or IV-V chord progression.

  13. #IV-7b5 = F#-7b5 (Borrowed from C Lydian)


    ||: Cmaj7 | G7 | F#-7b5 | Fmaj7 G7 : ||
    ||: Cmaj7 | Fmaj7 | F#-7b5 | | G7: ||

    Primarily used as a transition chord from V7 to IVmaj7 or vice versa.

As with everything: experiment a lot and let your good taste be your guide.
Through experimentation, you will discover which chord combinations sound good and which don’t work.

It has been said that; “knowledge is power”.
Knowledge is only power though when through memorization, that knowledge has become part of you. Knowledge on paper is not power because you will always need the paper as a crutch.

Only when you have all of this information fully memorized, will you actually also remember to use these options and consider them as possibilities while you’re writing music.
This is a huge step forward in your songwriting. You just discovered a great way to introduce many new colors to your songs.

You of course also want to practice this in all 12 keys, which is why you want to memorize all modal interchange options with their scale degree names (Im7, IVm7, Vm7, bIImaj7, etc.), not with note names (Cm7, Fm7…).


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Leave a Comment

  1. Peter Relph Says:

    Just come across this, helped so well!! I did have one question, I am studying Extraspecial by Mark Lettieri, lovely piece.

    It’s in Cminor, he is starting on an Abmaj7 for two bars then an E7#9. Is this borrowed from an Ab mode of some sort? Or is it being used as a sub for another chord? I understand why it works in terms of voice leading, but it baffles me!

    If you could shed some light that would be great! Loving the content!

    June 1st, 2020 at 6:14 pm
  2. vreny Says:

    I would have to see the chord progression. Does the E7#9 resolve down a half step too Eb7? If so, then the E7#9 chord is a subV7/V in the key of Ab, and would in that case also be named incorrectly actually. It would then have to be called Fb7#9.

    July 3rd, 2020 at 10:08 pm