Vii°/x

Definition

The term vii°/x refers to a secondary leading-tone chord, typically functioning as a dominant chord that resolves to the tonic of a different key. This chord is built on the seventh scale degree of the key where it resolves and is often used to create tension before modulating to a new tonal center. It adds richness to harmonic progressions by providing a way to smoothly transition between different keys.

5 Must Know Facts For Your Next Test

1. In the vii°/x chord, 'x' represents the scale degree in the new key where the chord resolves, creating a temporary modulation effect.
2. This chord is commonly used in classical music and jazz to enhance harmonic interest and facilitate key changes.
3. The vii°/x chord typically consists of a diminished triad, which adds tension and anticipates resolution to the tonic of the new key.
4. When using vii°/x, composers often employ voice leading techniques to smoothly connect chords across modulations.
5. The function of vii°/x aligns with other secondary dominants in that it aims to create a sense of movement away from the established key.

Review Questions

• How does the vii°/x chord function within a harmonic progression?
  • The vii°/x chord functions as a secondary leading-tone chord that prepares for modulation by creating tension before resolving to the tonic of a new key. By acting as the dominant of the upcoming tonic, it sets up an expectation for resolution, enriching the harmonic texture. This movement enhances the overall progression by introducing a temporary tonicization of another diatonic chord.
• Discuss how vii°/x can be effectively used in modulation between keys.
  • vii°/x can be effectively used in modulation by providing a smooth transition from one key to another. By resolving this secondary leading-tone chord to its corresponding tonic, composers create a seamless shift in tonality. The use of vii°/x allows for dramatic shifts in harmonic direction without jarring changes, making it an essential tool for composers aiming for fluidity in their musical narratives.
• Evaluate the impact of incorporating vii°/x in contemporary compositions versus classical forms.
  • Incorporating vii°/x into contemporary compositions can greatly enhance harmonic complexity and provide innovative pathways for modulation, reflecting modern styles that favor exploration over traditional constraints. Unlike classical forms where its usage might adhere closely to established norms, contemporary music often embraces more experimental applications, allowing for unique interpretations of tension and resolution. This approach encourages composers to blend traditional harmonic practices with new techniques, thus expanding the expressive possibilities within their works.

Related terms

Secondary Dominant: A secondary dominant is a chord that acts as the dominant (V) of a diatonic chord other than the tonic, temporarily tonicizing that chord within the context of the progression.

Modulation: Modulation is the process of changing from one key to another within a piece of music, often using pivot chords or secondary dominants to facilitate smooth transitions.

Diatonic Harmony: Diatonic harmony refers to chords that are built from the notes of a particular scale, adhering to the scale's key signature and tonal center.