key term - Mediant

Definition

The mediant is the third scale degree in a diatonic scale, positioned between the tonic and dominant. This degree plays a crucial role in harmonization and establishing tonal relationships within music, often serving as a pivot point in chord progressions and creating emotional depth through its characteristic sound.

5 Must Know Facts For Your Next Test

1. The mediant can be found in both major and minor scales, with its function shifting based on the context of the harmonic environment.
2. In chord progressions, the mediant chord (iii or III) often leads smoothly to other chords, enhancing musical transitions.
3. The mediant relationship is often employed in modulation, allowing composers to change keys fluidly by incorporating the mediant.
4. In pop music, the mediant chord is commonly used for embellishing tones, creating more complex harmonic textures.
5. The interval from the tonic to the mediant is a major third in a major scale and a minor third in a minor scale, impacting the emotional color of music.

Review Questions

• How does the mediant function within chord progressions, particularly in relation to the tonic and dominant?
  • The mediant functions as an important transitional element within chord progressions by connecting the tonic to the dominant. It creates smooth harmonic movement due to its placement as the third scale degree. When used in progression, moving from the tonic to the mediant and then to the dominant creates a pleasing sense of direction, allowing for effective resolution back to the tonic.
• Analyze how modulation using the mediant enhances musical compositions across different genres.
  • Modulation using the mediant allows composers to shift between keys while maintaining coherence in their music. By leveraging the mediant's connection to both major and minor scales, composers can create fresh contrasts and emotional dynamics. This technique is especially prevalent in genres like classical and pop, where shifts can surprise listeners and enhance overall musicality without losing thematic integrity.
• Evaluate the role of the mediant in defining emotional qualities in music through its harmonic relationships.
  • The mediant plays a pivotal role in defining emotional qualities within music by influencing harmonic relationships. The unique sound created by moving between tonic, mediant, and dominant allows composers to craft intricate emotional narratives. By manipulating these relationships—such as using mediants for chromaticism or embellishing tones—musicians can evoke feelings of tension, resolution, or nostalgia, making it an essential tool for expressive composition.

Related terms

Tonic:

The tonic is the first scale degree of a diatonic scale, serving as the home note or tonal center around which other notes and chords are organized.

Dominant:

The dominant is the fifth scale degree of a diatonic scale, which creates tension that typically resolves back to the tonic, forming a critical part of chord progressions.

Submediant:

The submediant is the sixth scale degree in a diatonic scale, often related to the mediant and playing a significant role in chord functions and progressions.