The viio7/v is a leading tone seventh chord built on the seventh scale degree of the dominant key's scale, functioning as a predominant chord that resolves to the V chord of that key. It plays a crucial role in harmonic progressions by intensifying the movement toward the V chord, creating a sense of tension and expectation. This chord is often used in both diatonic and chromatic harmony to enrich musical texture and facilitate modulations.
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The viio7/v chord consists of four pitches: the root (leading tone), minor third, diminished fifth, and minor seventh, which create its distinct tension.
This chord is typically notated as viio7/v in Roman numeral analysis to indicate its function within a different key context.
Resolving from viio7/v to V creates a stronger pull to the tonic because it incorporates both leading tone and dominant functions.
In classical harmony, viio7/v often leads to the dominant (V) chord of the original key, enhancing modulation between keys.
Viio7/v can be approached by various means, including stepwise motion from preceding chords, making it flexible in harmonic progressions.
Review Questions
How does the viio7/v function in relation to harmonic progression within a piece of music?
The viio7/v functions as a predominant chord that creates tension leading into the dominant (V) chord of its key. By resolving to the V chord, it intensifies the harmonic motion towards the tonic, thereby enriching musical phrases. This progression highlights the importance of leading tone chords in establishing tonal centers and guiding listeners through tonal shifts.
Discuss how the use of viio7/v might differ in classical versus contemporary music contexts.
In classical music, viio7/v is typically employed in traditional harmonic progressions to reinforce tonal relationships and establish clear resolutions. Contemporary music may utilize this chord more freely, often incorporating non-diatonic elements or shifting tonalities that blur functional boundaries. This flexibility allows for creative expression while still benefiting from the inherent tension that viio7/v provides in leading to dominant chords.
Evaluate the impact of using viio7/v on modulations between keys and how it can alter the emotional landscape of a composition.
Using viio7/v can significantly enhance modulations by providing a strong pull towards dominant chords in a new key, allowing composers to navigate smoothly between tonal centers. This technique contributes to an altered emotional landscape by creating heightened tension before resolutions. When effectively employed, viio7/v not only facilitates transitions but also shapes listeners' emotional responses through its unique harmonic properties.
A chord built on the leading tone, which is the seventh degree of the scale, that typically resolves upward to the tonic.
Dominant Function: The role of chords that lead to the tonic, primarily played by V (dominant) and vii° chords in a key.
Secondary Dominant: A dominant chord that temporarily tonicizes a chord other than the tonic, often indicated with the symbol V/x where x is the chord being tonicized.