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CHORDS THEORY - Lesson 26 - Major and dominant 9th chords

Andrei Moraru

New Student
Nov 11, 2019
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So is there any stop to all this insanity?
  1. Topics of discussion
  2. Major 9th chords
  3. Dominant 9th chords
1. Topics of discussion

In this tutorial, we are going to talk about major 9th and dominant 9th chords. So, let's have some fun.

2. Major 9th chords

Major 9th chords, notated as maj9, are fairly easy to understand. They are basically maj7 chords, on top of which we add another note, the 9th note, to be exact. Thus, the formula for these chords is 1 3 5 7 9. As you can see, there are quite a few notes there that need to be played, in theory at least. In practice, as long as you have the 7 and 9 notes, that should suffice.

Given the formula above, the notes for the Cmaj9 chord are C E G B D. One way in which you can play a Cmaj9 chord is the following one, which is the C form:

Cmaj9_Cform.png
And here it is played back.

Let's move on to the A form:

Cmaj9_Aform.png
And here it is played back.

Next in line is the G form:

Cmaj9_Gform.png
And here it is played back.

Let's move on to the E form:

Cmaj9_Eform.png
And here it is played back.

Anf finally, the D form:

Cmaj9_Dform.png
And here it is played back.

3. Dominant 9th chords

Dominant 9th chords, notated with the 9 digit, are formed by adding the 9th note on top of a dominant 7th chord. Thus, the formula for these chords is 1 3 5 ♭7 9.

The C9 chord consists of the C E G B♭ D notes. Here are some ways to play it. First off, the C form:

C9_Cform.png
And here it is played back.

Next in line is the A form:

C9_Aform.png
And here it is played back.

Let's move on to the G form:

C9_Gform.png
And here it is played back.

Next in line is the E form:

C9_Eform.png
And here it is played back.

And finally, the D form:

C9_Dform.png
And here it is played back.

That about covers it for this one. Next time, we will discuss the remainder 9th chord types, minor 9th and minor 9th flat five. See you then.