Modal Jazz

1st Lesson - Modal Harmony And Composition

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modale

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Opening post by modale

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foggia

1^ LESSON

ABBREVIATIONS:

Lydian Chromatic Concept of Tonal Organization = Lccoto

Ionian Concept of Tonal Organization = Icoto

Modal Harmony = MH

Tonal Harmony = TH

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MH uses Lccoto

TH uses Icoto

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In this first lesson, I wish to explain the difference between MH and TH, and therefore between Lccoto and Icoto. Understanding this difference is FUNDAMENTAL for subsequent studies.

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WHAT HAPPENS in Icoto:

Let's take any chord, e.g., D-

If we find a D- chord in a tonal piece, the scale we play over it is different in relation to the key of the piece.

-If we are in the key of Bb, then D- is the third degree of the Bb Ionian scale, and over the D- chord, we will play the Bb Ionian scale.

-If we are in the key of F, then D- is the sixth degree of the F Ionian scale, and over the D- chord, we will play the F Ionian scale.

-And if we are in the key of C, then D- is the second degree of the C Ionian scale, and over the D- chord, we will play the [C] Ionian scale.

As you can see, for a single chord, we have three possible parent Ionian scales.

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WHAT HAPPENS IN Lccoto:

Let's take the same D- chord.

This chord is played in alliance with ONE AND ONLY ONE SCALE.

The chord and the scale therefore constitute an inseparable whole.

In the case of the D- chord, the scale is D Dorian (the sixth degree of the F Lydian scale).

EVERY TIME we find the D- chord, we will play the D Dorian scale in alliance with it REGARDLESS OF THE KEY OF THE PIECE.

A chord and its allied scale therefore express a single mode.

A difference from Icoto, where a chord can be paired with multiple modes.

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This produces incredible consequences on the harmonic level:

-Try to think of a piece in Bb, where obviously the key signature contains two flats, namely Bb and Eb. If a D- chord appears in this piece and if we play such a chord as D Dorian, thus allied to the D Dorian scale, suddenly the two flats of the key signature will be missing; this produces a verticalization of the melody and harmony that certainly would not exist if we played the D– as the third degree of the Bb Ionian scale.

-We play unlinked from the key of the piece since every chord in the piece possesses its own specific scale, and therefore every chord is seen as an expression of a mode.

THEREFORE:

the succession of chords in a piece in Icoto generally presupposes a line played on the Ionian scale of the tonic chord, whereas in Lccoto, every chord lives and expresses itself based on the mode it represents.

This is the difference between TONAL HARMONY AND MODAL HARMONY.

You will have realized by this point that:

EVEN A TONAL PIECE CAN BE ANALYZED AND PLAYED ACCORDING TO MODAL RULES.

This is referred to as "modalization of a tonal piece."

MODAL HARMONY IN THE STRICT SENSE IS SOMETHING ELSE AND WILL BE THE SUBJECT OF THIS SEMINAR.

See "articulation of the teaching project" in PREFACE.

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Reply 3 by AleGozzo

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355
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milano

thanks mod, personally I find everything clear, I'm just asking for a couple of nuances, to be sure I understood:

In the case of the D- chord, the scale is D dorian. (Sixth degree of the F lydian scale)

Why do you specify that Dorian is the 6th of the F lydian scale? Is there some specific connection or could you also have said it's the 5th of G mixolydian, the 2nd of C ionian, etc.?

D- = dorian

If you had made the example with D- = phrygian, would it have been the same thing?

I mean, can you choose any mode that contains the chord, or did you choose Dorian for a specific reason?

bye

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Reply 4 by modale

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269
City
foggia

thanks modale, personally I find everything clear, I only ask you for a couple of nuances, to be sure I have understood:

In the case of the Dm chord, the scale is D Dorian (Sixth degree of the F lydian scale).

Why do you specify that Dorian is the 6th of the F lydian scale? Is there some specific connection or could you also say it is the 5th of G mixolydian, the 2nd of C ionian, etc.?

Dm = dorian

If you had made the example with Dm = phrygian, would it have been the same thing?

I mean, can one choose any mode that contains the chord, or did you choose Dorian for a precise reason?

bye

ANSWER: Dm is the sixth degree of the F Lydian scale because at the center of the tonal organization there is a Lydian scale; later I will tell you why there is a lydia scale and not a scale of another mode.

In the "PREMISE" I said that the seminars will begin by treating the first point of the program: "Use of the concept in Tonal Harmony". In Tonal Harmony, otherwise defined as Western Harmony, there are the "MAIN CHORD FAMILIES" which I will speak about later; among these families is the "Minor" one, which presupposes a minor chord which is paired with the Dorian scale. For the moment make it a rule, then I will explain everything.

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