Diatonic triads

[chasumdeep]

What are the diatonic triads for the natural minor scale, dorian, lydian and mixolydian modes (if any) and how do I use them???

Thanks :cool:

[Metallicka]

The easy way to find chords is by building them yourself. All chords are is notes harmonised with thirds like this:

C major C-D-E-F-G-A-B
Third---E-F-G-A-B-C-D
Third---G-A-B-C-D-E-F

Now if you check this you'll see that those are the diatonic triads of C major = C, Dm, Em, F, G, Am, Bdim. If you keep adding thirds:

C major C-D-E-F-G-A-B
Third---E-F-G-A-B-C-D
Third---G-A-B-C-D-E-F
Third---B-C-D-E-F-G-A and so on

You now get the 7th chords of C major = Cmaj7, Dm7, Em7, Fmaj7, Gdom7(G7), Am7, Bm7b5. You see the pattern? So for what ever scale you are using, let's take A minor which is the relative minor of C. Just do the same thing:

A minor A-B-C-D-E-F-G
Third---C-D-E-F-G-A-B
Third---E-F-G-A-B-C-D

Which gives you Am, Bdim, C, Dm, Em, F, G. The same chords as in C only from a different perspective. Do the same for whatever mode/scale, lay out the notes and count the thirds, this rule is universal I believe.

Oh, if you lay the notes out for example; A-C-E and you don't know what chord that is then take the major scale of A which is:
A-B-C#-D-E-F#-G#
1-2--3-4-5-6--7 then look what they are
A-C--E
1-b3-5 which is the formula for a minor chord.

Or just look at a chord builder online.

[wild_axeman]

That was a pretty good explanation.

Just to give a different perspective, chords are made of every 'other' note in a scale and can have 3 to 7 notes.

Three note chords are triads.These are your average,every day,
run-of-the-mill,major and minor chords.Then you have 4 note chords
which are major seven,minor seven and dominant seventh type chords.Beyond those you have three additional notes or 'extensions'(or "tensions") that can be added on to the triads and seventh chords.

So looking at the C major scale you'd have this:

1 2 3 4 5 6 7
1 2 3 4 5 6 7 8 9 10 11 12 13
C D E F G A B C D E F G A B

note: The triad and seventh in the first octave,
and the "extensions" (9,11,13) in the second octave
So it's just every other note or every "third" note.Each note is a "third" apart.Some of these thirds are major thirds and some are minor thirds.But it may help to think of them as just being every OTHER note in the scale.

Hope that helps!

[wild_axeman]

Here's a link to some chord formulas (http://members.tripod.com/~johncomino/const.htm)

[Marz_guitarz]

Well done

That is an excellent explanation.

As a foot note I would add not to get too lost or concerned with complicated theory. It is VERY important to know all of these things but when writing solos use ear first theory second and you will sound great.


Cheers
Marz

[chasumdeep]

Thanks guys. That really helped!!!

:cool:

[Marz_guitarz]

Any time friend:cool:

Cheers Marz