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Question about chord prgressions.

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(@guitarmonkey)
Eminent Member
Joined: 20 years ago
Posts: 17
Topic starter  

Ok well this is a farely simple question and i could probably have found it somewhere. but oh well. My question is how do you get chords our of the progression. Like if i said key of A play I, IV, and V which is twelve bar blues. How do you know the chords?


   
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(@alex_)
Honorable Member
Joined: 21 years ago
Posts: 608
 

from the scale.

I, IV, V in A is..

I = tonic (first) = A major
IV = subdominant = (fourth) = D major
V = dominant (fifth) = E major

scale is

A B C# D E F# G# A

so the III is C#.. follow?


   
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(@musenfreund)
Illustrious Member
Joined: 22 years ago
Posts: 5108
 

In a 12-bar blues that V is often a 7 chord, so an E7 in Alex's example. Here's a good lesson on the 12-bar blues:

12-bar Blues Theory.

Well we all shine on--like the moon and the stars and the sun.
-- John Lennon


   
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