How can I borrow diminished chords with Modal Interchange?

Borrowing Diminished Chords with Modal Interchange

When utilizing modal interchange in chord progressions, musicians have the opportunity to introduce new colors and harmonic flavors. One interesting aspect of modal interchange is the ability to borrow diminished chords from related keys, adding unique and captivating sounds to compositions. In this article, we will explore the concept of borrowing diminished chords through modal interchange, examining the available options in major and minor keys.

Diminished Triads in Major and Minor Keys

Let’s start by understanding the role of diminished triads in major and minor keys. In major keys, the only diminished triad available for borrowing is the vii° chord. This chord is built on the seventh scale degree of the major key and is naturally occurring within the key’s diatonic harmony. However, in minor keys, there are two diminished triads available for borrowing: the vii° chord and the ii° chord.

Borrowing Diminished Triads

Now, let’s explore how to borrow diminished triads using modal interchange. In major keys, it is not possible to borrow the vii° chord from the parallel minor key since it is already diatonic to the major key itself. However, in minor keys, musicians can borrow the ii° chord from the parallel major key to introduce a diminished triad into the progression. This borrowing technique adds a unique and unexpected flavor to the minor key, creating tension and interest.

Borrowing Diminished Seventh Chords

Furthermore, musicians can also borrow diminished seventh chords using modal interchange. In major keys, the vii°7 chord is the only diminished seventh chord available for borrowing. As mentioned earlier, this chord is naturally occurring in the major key’s diatonic harmony. In minor keys, both the vii°7 chord and the ii°7 chord can be borrowed as diminished seventh chords. These borrowed diminished seventh chords add increased tension and complexity to the harmonic landscape.

It’s important to note that when using borrowed chords, including diminished chords, it is crucial to ensure that the progression still leads back to the ultimate tonic chord. This approach maintains a sense of tonal center and avoids full modulation, allowing the borrowed chords to enhance the composition without completely changing its key.

Sources:

1. The Jazz Piano Site: Modal Interchange & Borrowed Chords
2. Music Stack Exchange: How can I borrow diminished chords with Modal Interchange?
3. Piano With Jonny: Modal Interchange: The Complete Guide to Borrowed Chords

FAQs

Can I borrow a diminished chord in a major key?

Yes, in major keys, you can borrow the vii° chord as a diminished triad. This chord is naturally occurring within the major key’s diatonic harmony.

Are there any other diminished triads available for borrowing in major keys?

No, the vii° chord is the only diminished triad that can be borrowed in major keys.

Can I borrow a diminished chord in a minor key?

Yes, in minor keys, you have two options for borrowing diminished triads. You can borrow the vii° chord, which is already diatonic to the minor key, or you can borrow the ii° chord from the parallel major key.

Can I borrow diminished seventh chords in major keys?

Yes, in major keys, you can borrow the vii°7 chord as a diminished seventh chord. This chord is naturally occurring within the major key’s diatonic harmony.

Can I borrow diminished seventh chords in minor keys?

Yes, in minor keys, you can borrow both the vii°7 chord and the ii°7 chord as diminished seventh chords. These borrowed chords add increased tension and complexity to the harmonic progression.

What is the purpose of borrowing diminished chords with modal interchange?

Borrowing diminished chords through modal interchange adds unique and captivating sounds to compositions. These borrowed chords introduce tension and interest, enhancing the overall harmonic landscape of a piece.

How should I use borrowed diminished chords to maintain tonal center?

When using borrowed chords, including diminished chords, it is essential to ensure that the progression still leads back to the ultimate tonic chord. This approach maintains a sense of tonal center and avoids complete modulation.

Can I use borrowed diminished chords in different musical genres?

Yes, borrowed diminished chords can be utilized in various musical genres. The technique of modal interchange and borrowing chords is not limited to a specific genre and can be applied creatively in different musical contexts.