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Quiz Answer: The “A Power Chord” Riffs easily transpose to the E & D Power Chords.

“Chords produce 4 unique sounds (Types)” 

Fig.1.  The Major Chord (“C Chord”shown as an example above) is 1 Type of Chord.

-All Triads consists of three distinct tones.
The tones of the C Major Triad, in the above example, from lowest to highest are:
C-E-G-C-E (C & E are each repeated once).  

-The 1st Tone is the Fundamental Note.
-The 2nd Tone is a Third of the Fundamental.
-The 3rd Tone is a Fifth of the Fundamental.
Referring to the “C Major (scale) Triad” above and using the Major Scale Intervals of W-W-H-W-W-W-H we see that the Notes are:
C(1st)- D(2nd)-E(3rd)-F(4th)-G(5th)-A(6th)-B(7th)

-Therefore the Interval between each note is a Third. (C to E) is a 3rd as is (E to G) a 3rd (highlighted in black above).

E Major Triad (full)Fig.2.  In this example the “E Major Chord” Triad as it is constructed from the “E Major Scale”.

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The 4 Types of Triads.

-There are the Major, Minor, Diminished and Augmented Triads.
The Fundamental note is present in each however the combination of the Thirds (Intervals) determines the Type of Triad:

1. The Fundamental Note with a Major Third 1st Interval and a Minor Third 2nd Interval
creates a Major Triad (C-E-G).

2. The Fundamental Note with a Minor Third 1st Interval and a Major Third 2nd Interval
creates a Minor Triad (C-D#-G).

3. The Fundamental Note with a Minor Third 1st Interval and a Minor Third 2nd Interval
creates a Diminished Triad (C-D#-F#).

4. The Fundamental Note with a Major Third 1st Interval and a Major Third 2nd Interval
creates a Augmented Triad (C-E-G#).

Note: the “Minor” in “Minor Third” simply means to flatten the third note a half step (1 fret).

Major and Minor Triads are the most common.  They have a stable sound which does not leave you waiting for the final chord (they resolve).

These Types of Triad are known as Consonant Sounding.

Diminished and Augmented Triads are the less commonly used.  They have a unstable sound which leaves you waiting for the final chord (they are unresolved).
These Types of Triad are known as Dissonant Sounding.

-The notes of a Triad may be repeated as long as it is physically accessible when forming the chord.

-The order of the Tones may also be changed leading to the various Inversions.


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