Dominant 7th Chord / 7th Chord / A7, C7, D7, E7, G7

The Dominant 7th Chord comes from the Mixolydian Mode / Vth degree of a Major Scale – The name comes from the fact that this chord occurs naturally as the seventh chord built on the dominant (i.e. fifth / V) scale degree of a given major scale. Thus it corresponds to the Mixolydian mode of that major scale. Thus, the steps of this scale are (major scale is 221-2-221), 2-2-1-2-2-2-1-2 and thus the intervals involved are 1-2-3-4-5-6-b7-8. Thus the chords possible include:

• 1-3-5-7b: Major Minor 7th / Dominant 7th / a.k.a “the 7th chord” (X7)

The dominant 7th chord goes well only in some songs of major chords and has been included in this list as these are commonly played with major chords. This chord does not come from the major scale directly as the scale does not contain the m7 interval (it has a M7).
http://basicmusictheory.blogspot.com/2009/10/dominant-7th-chord-7th-chord-a7-c7-d7.html

Liked 'Dominant 7th Chord / 7th Chord / A7, C7, D7, E7, G7' enough to share / save?

Dominant 7th Chord / 7th Chord / A7, C7, D7, E7, G7