Each scale degree can be played in a different chord type. Sometimes this determines how a scale degree resolves. The chord type helps convey the emotion of a piece of music. In general, major chords are happy or upbeat, and minor chords are low and sad. However, that doesn’t tell the whole story. Here are some popular chord types:
Major 7th- Major seventh chords sound contemplative and soft, and are often used in jazz.
Minor 7th- These chords are moodier and more brooding than major seventh chords.
Dominant 7th- Dominant seventh chords are robust, commanding, and daring.
Major 6th- Major sixth chords are entertaining and spirited.
Minor 6th- These chords sound dark and furtive.
Suspended 4th- Suspended fourth chords sound almost regal and dignified.
9th- Ninth chords are very animated and bouncy.
Diminished- These chords sound dark and edgy.
Augmented- Augmented chords give a sense of suspense and involve a lot of movement.
Based on the scale degrees, each chord has a logical progression that will help you create pleasing music. This why learning about music theory harmony rules or taking music harmony lessons is so beneficial. Without harmony, you’ll be playing melodies, not music.