Harmonizing the C Scale

Teaching how a scale is harmonized and numbered, such that the student will learn, I chord is major, iii chord is minor, and so on.

Harmonizing the C Scale
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Mapping out the C scale. Let's memorize those whole and half steps with scale degrees as well.

C step D step E half step F step G step B half step C.

Step = 2 frets on the guitar, half step = 1 fret.

Now in Roman numerals. Capital indicates chord will be major, lower case indicates chord will be minor.

I step ii step iii half step IV step V step vi step vii half step I.

Learning the numbers means you won't have any trouble transposing to other keys.

Chords are built on thirds. Take a starting note, assign the number 1 and count up three. For example: if C is 1, then C - D - E, E would be 3 or what we call a third.

Now let's put "thirds" on top of our C scale, one row at a time.

E F G A B C D E
C D E F G A B C

The thirds shown will be major and minor according to number system you've written out above (yes, write it until you have if fully memorized, backwards and forwards).

Let's add our 2nd row of thirds on top to complete the triads (triads are 3 note chords).

G A B C D E F G
E F G A B C D E
C D E F G A B C

So our chords for the key of C will be...

C  - D minor - E minor - F - G - A minor - B minor (flat 5) and C.

It is not necessary to write major after the letter name. But do write minor after the letter name for minor chords.

Ask yourself how many half steps did it take to make a minor third. How many to make a major third.

Next lesson we'll explore step theory and add the 7th degree to our chords. Spellings you've seen already such as C maj7 G7 or Dmin7.

And remember: guitar playing comes from your head, through your heart, and finally to your fingers. Clear musical thinking is your first goal.

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    robtabpro
    sorry, did I miss something? instead of: C step D step E half step F step G step B half step C. shouldn't it be? C step D step E half step F step G step A step B half step C. Thank you