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7th Chords in a Key

By Darren DeFranco


Hey guys,

In this lesson we’re going to look at how 7th chords fit into a key. In our previous lessons we looked at which chords in a key are major and minor, but now we’re going to build off of these and turn them into 7th chords. Here’s a summary:

All the minor chords become minor 7 chords
The I and IV chords become major 7 chords
The V chord becomes a dominant 7 chord.
Finally, the vii chord becomes a minor 7b5 or a half diminished.

Hope everything makes sense! Let us know if you have any questions!

 

As always, take your time with these theory lessons. For your homework, figure out the 7th chords in the following keys:

1) A major
2) D major
3) F Major
4) Bb major
5) E major

 

1) A maj7, B min7, C# min7, D maj7, E7, F# min7, G# min7b5
2) D maj7, E min7, F# min7, G maj7, A7, B min7, C# min7b5
3) F maj7, G min7, A min7, Bb maj7, C7, D min7, E min7b5
4) Bb maj7, C min7, D min7, Eb maj7, F7, G min7, A min7b5
5) E maj7, F# min7, G# min7, A maj7, B7, C# min7, D# min7b5

 
 

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One Comments to “7th Chords in a Key”
  1. Bert says:

    Hi there. What are the rules when in a minor key? Thanks for the great video

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