Augmented triad

Definition

An augmented triad is a type of chord that consists of a root note, a major third, and an augmented fifth. This unique combination creates a bright, dissonant sound that often conveys tension and anticipation. Augmented triads can serve as pivotal harmonic elements in musical progressions, and their distinctive structure allows them to function in various contexts, such as modulations and voice leading.

5 Must Know Facts For Your Next Test

1. The intervals in an augmented triad are constructed by stacking two major thirds on top of each other, resulting in the augmented fifth being one half step higher than the perfect fifth found in major triads.
2. Augmented triads are symmetrical in nature, which means they can be transposed easily, allowing for multiple root notes while maintaining the same intervallic structure.
3. In music composition, augmented triads often act as pivot chords to smoothly transition between different keys or tonal centers due to their ambiguous quality.
4. Augmented triads can also be found in seventh chords, particularly in augmented seventh chords, where an additional minor seventh is added to the augmented triad.
5. Commonly used in various genres like classical, jazz, and pop music, augmented triads add a sense of drama and excitement due to their tension-filled sound.

Review Questions

• How does the structure of an augmented triad compare to that of other types of triads?
  • An augmented triad differs from other triads primarily in its interval structure. While major triads consist of a root, major third, and perfect fifth, and diminished triads comprise a root, minor third, and diminished fifth, the augmented triad features a root, major third, and augmented fifth. This unique combination gives it a distinctive sound characterized by brightness and tension, making it versatile for various harmonic functions.
• Discuss the role of augmented triads in harmonic dictation and how they can influence musical analysis.
  • In harmonic dictation, recognizing augmented triads is crucial because they provide insights into key changes or modulations within a piece. Their distinct sound often signals shifts or tensions that can affect the overall harmonic progression. When analyzing music, identifying augmented triads helps understand compositional techniques employed by composers to create contrast or resolve tension within their works.
• Evaluate the importance of augmented triads in voice leading practices within music composition.
  • Augmented triads play a significant role in voice leading by providing smooth transitions between chords while maintaining harmonic interest. Their symmetrical nature allows for flexible movement in composition, making them ideal for connecting diverse chords seamlessly. By employing augmented triads strategically within progressions, composers can enhance emotional depth and create memorable musical phrases that captivate listeners.

Related terms

Major Triad: A major triad is composed of a root note, a major third, and a perfect fifth, resulting in a consonant and stable sound.

Diminished Triad: A diminished triad consists of a root note, a minor third, and a diminished fifth, creating a tense and unstable sound.

Voice Leading:

Voice leading refers to the smooth transition of individual musical lines or voices from one chord to another, which can involve the use of augmented triads to create effective harmonic movement.