Similarities
1. Both Dorian and Mixolydian are diatonic modes that are derived from the natural major scale.
2. Both Dorian and Mixolydian are characterized by their "modal" sound.
Key differences
- Tonic Note: The first and most fundamental difference between Dorian and Mixolydian modes lies in their tonic notes. Dorian mode is based on the second degree (D) of the major scale, while Mixolydian mode is based on the fifth degree (G) of the major scale.
- Interval Structure: The interval pattern that separates the notes of Dorian and Mixolydian modes is also different. Dorian mode follows the interval pattern of WWHWWWH, while Mixolydian mode follows the pattern of WHWWHWW. Here's a visual representation:
Dorian: T - W - W - H - W - W - W
D E F G A B C D
Mixolydian: T - W - H - W - W - H - W
G A B C D E F G
The Dorian mode has a distinctive melancholic and moody quality, while Mixolydian often conveys a brighter, more joyful and "bluesy" sound.
- Emotion and Mood:
* Dorian mode is known for evoking a contemplative or somber mood due to its minor sixth and seventh intervals. It's commonly used in Celtic music, Spanish flamenco, and jazz to create an introspective or mysterious atmosphere.
* Mixolydian mode, on the other hand, often produces a more exuberant or triumphant mood due to its major sixth and seventh intervals. It is widely employed in blues music, jazz, and rock music to create a "bright and cheerful" feel.
In conclusion, Dorian and Mixolydian modes offer unique characteristics that contribute to the emotional depth and musical expression in a composition. Understanding their distinct features allows musicians to use them effectively in creating music that resonates with the intended mood and style.