Beginner Guitar Lesson OnLine: Chord Theory 103


Beginner Guitar Lesson OnLine 

Chord Theory 103

Know How They Are Formed Before You Start Strumming

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Let's Investigate The Minor Keys:

Here is another rule. There is always a "Minor" key associated with each Major Key and the terminology for the minor key is the "Relative Minor" or that it is closely related to the Major Key.

In the case of C Major the Relative Minor key is A Minor. This key name for the Minor Scale is (9) 1/2 steps (or 4-1/2 Steps) from the "Root" or "C". This is the rule for every Relative Minor Key.

Let's Investigate The Minor Keys:

Chords in the Key of "A minor", Which is Relative to C Major Would be:

  • A Minor - Written as Am
  • Count up (5) 1/2 Steps
  • D Minor - Written as Dm
  • Count up (2) 1/2 Step
  • E Seventh - Written as E7
  • Here is the Formula to Remember

    From Am to Dm is (5) 1/2 steps or (2-1/2) whole steps.
    From Dm to E7 is (2) 1/2 steps or 1 whole step.
    This applies to both Major and Minor Scales

    This works out the same as the Major Key so memorize that formula: 

    Let's Investigate The Minor Key Relative to A Major:

      If you count up (9) 1/2 steps (or 4-1/2" Steps) from the root of the A Major scale you will arrive at F#.

    Therefore F#m is the Relative key of A Major. Take a look a the Bottom Diagram.

    Chords in the Key of "F# minor", Which is Relative to A Major Would be:

  • F# Minor - Written as F#m
  • Count up (5) 1/2 Steps
  • B Minor - Written as Bm
  • Count up (2) 1/2 Steps
  • C# Seventh - Written as C#7
  • Here Again is the Formula to Remember

    From F#m to Bm is (5) 1/2 steps or (2-1/2) whole steps.
    From Bm to C#7 is (2) 1/2 steps or 1 whole step.
    This applies to both Major and Minor Scales

    A Minor Scale
    A Minor Scale

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