Lesson 29 - Dominant 7th Chord
1. IntroductionIn this lesson, you will learn about the dominant 7th chord. The dominant 7th chord is basically a major chord with one extra note added, the minor 7th. Any time you see the V chord in any major key, you can substitue that chord with the dominant 7th chord (V7).
2. Constructing the Dominant 7th ChordPlaying the dominant 7th chord is easy. Just play a major chord, and add a note that is an interval of a minor 7th from the root note of the chord. Another way to think about it is by using a formula of half steps. Below is the formula for the dominant 7th chord.
Root + 4HS + 3HS + 3HS
3. Playing the Dominant 7th ChordLet's take a look at the dominant 7th chord starting on C. This is called the C dominant 7th chord (C7). In the animation below, the notes of the C dominant 7th chord are first played separately, then together.
4. Dominant 7th Chord in All 12 KeysYou can play the dominant 7th chord in all twelve keys. Below is a chart of all 12 dominant 7th chords.
(Chart of all 12 dominant 7th chords)
5. ConclusionIn this lesson, you learned how to play the C dominant 7th chord. There is a dominant 7th chord for each of the 12 keys. Every time you see a V chord in songs, try substituting it with a dominant 7th chord (V7) instead.
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