Submediant chord

Definition

The submediant chord is the sixth scale degree of a diatonic scale, typically represented by the Roman numeral vi in major keys and III in minor keys. This chord plays a vital role in harmonic progressions and often serves as a tonic substitute, providing a smooth connection between other chords within a progression. Understanding its function can enhance the richness of composition and improvisation.

5 Must Know Facts For Your Next Test

1. In a C major scale, the submediant chord is A minor (A-C-E), while in A minor, it is F major (F-A-C).
2. Submediant chords can be used in both major and minor contexts, offering contrasting moods depending on their harmonic surroundings.
3. This chord often appears in common progressions like vi-IV-I-V, which are prevalent in popular music.
4. Submediants can create smooth voice leading due to their close relationships with other chords, especially the tonic and dominant.
5. When using a submediant chord, composers often employ modal interchange to introduce borrowed chords that add color and complexity.

Review Questions

• How does the submediant chord function within a harmonic progression?
  • The submediant chord acts as a pivot point in harmonic progressions by creating smooth transitions between other chords. For example, moving from the tonic to the submediant provides a contrasting yet harmonious sound. Additionally, it can lead to the dominant or back to the tonic, making it a versatile tool for composers and songwriters looking to enhance their music's flow and emotional impact.
• Compare and contrast the roles of the submediant chord and the dominant chord within a key.
  • While both the submediant and dominant chords play essential roles in harmonic progressions, they serve different functions. The dominant chord creates tension that seeks resolution to the tonic, whereas the submediant chord often provides a softer contrast and can function as a tonic substitute. This allows for greater harmonic exploration, as incorporating submediants can enrich progressions by offering more variety before resolving back to the home key.
• Evaluate how the use of submediant chords can influence compositional techniques in contemporary music.
  • In contemporary music, the use of submediant chords can greatly influence compositional techniques by adding emotional depth and variety to progressions. Composers may utilize submediants to evoke specific feelings or create unexpected turns in their music. By blending submediants with modal interchange or layering them within different textures, musicians can craft unique soundscapes that challenge traditional harmonic expectations while still resonating with listeners.

Related terms

Tonic chord: The tonic chord is built on the first scale degree and serves as the home base or point of resolution in a key.

Dominant chord: The dominant chord is built on the fifth scale degree and is crucial for creating tension that resolves back to the tonic.

Mediant chord: The mediant chord is the third scale degree of the scale, often functioning as a bridge between the tonic and dominant chords.