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Modal Interchange
UNDERSTANDING THE BASICS

What is Modal Interchange?
Modal interchange refers to borrowing chords from different keys
...

It is often used in most genres, including rock, pop, jazz and classical music
...
Parallel and Relative Tonality
PARALLEL

RELATIVE

Tonalities/modalities of any given quality that
share the same root note
...


C major and C minor for example
...


odes to C Major

Notes in the Mode

Relative Modes to C Major

Notes in the Mode

C – D – Eb – F – G – A – Bb

D Dorian

D–E–F–G–A–B

C – Db – Eb – F – G – Ab – Bb

E Phrygian

E–F–G–A–B–C

C – D – E – F# - G – A – B

F Lydian

F–G–A–B–C–D

an

C – D – E – F – G – A – Bb

G Mixolydian

G–A–B–C–D–E

minor)

C – D – Eb – F – G – Ab - Bb

A aeolian (minor)

A–B–C–D–E–F

C – Db – Eb – F – Gb – Ab – Bb

B locrian

B–C–D–E–F–G

n

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Take this chord progression in C major for example:
Cmaj7 – Am7 – Fmaj7 – G7
I

VI

IV

V

A parallel tonality of C major is C minor, so we would replace one or more of the above chords
with a chord from C minor
...
(II) Parallel Tonalities
For this example, chord IV in the key of C major will be replaced by chord IV from the key of C
minor:
Original progression: Cmaj7 – Am7 – Fmaj7 – G7
New progression: Cmaj7 – Am7 – Fm7 – G7

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...

Take this chord progression in G minor for example:
Gm – Bb – Cm – Dm
I

III

IV

V

A parallel tonality of G minor is G Mixolydian, so we could replace one or more chords in the
progression above with a chord/chords from G Mixolydian
...
(IV) Parallel Tonalities
For this example, chords iii and IV in the key of G minor will be replaced with chords iii and IV
from the mode of G Mixolydian:
Original progression - Gm – Bb – Cm - Dm
New progression – Gm – Bm7b5 – C – Dm

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It is still viable however…
Take this chord progression in A major for example:
Amaj7 – F#m7 – Dmaj7 – E7
I

VI

IV

V

A relative tonality of A major is B Dorian, so we would replace one or more of the above chords
with a chord from B Dorian
...
(II) Relative Tonalities
For this example, the V chord of A major will be replaced by the V chord of B Dorian:
Original progression: Amaj7 – F#m7 – Dmaj7 – E7
New progression: Amaj7 – F#m7 – Dmaj7 – F#m7

Chord V of B Dorian is the same as chord VI of A major
...
(I) Modal Chord Qualities
How do we find out what our chord
qualities should be?

Keeping up with the Chordashians
...
(II) Modal Chord Qualities
Take this chord progression in D Lydian for example:
Dmaj7 – Bmin7 – G#m7b5 – Amaj7
I

VI

IV

V

We know this is a I – VI – IV – V progression in D Lydian because of the chord qualities
...
Overview
 Modal interchange means borrowing chords from different modalities/tonalities without
abandoning the established key
...

Different modes contain different sequences of chord qualities
...
So get experimenting!



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