I guess I'd call the bottom 5-note group a "Lydian" group - so, the scale
of the Lydian mode would consist of a 5-note Lydian group on the bottom and
a 4-note major group on top
(...As Western folk music musicians I guess we don't encounter the Lydian
pattern very often... In Romanian music it does occur now and then (but
they wouldn't call it "Lydian")... and I think I've been told it occurs
in
Scandinavian music?)
- Yaron
On Sun, Jun 7, 2020 at 12:39 AM Erik Hoffman <erik(a)erikhoffman.com> wrote:
How would you classify Lydian?
Bottom:
DEF#G# - Whole tone
Top:
ABC#D - Major
*From:* Yaron Shragai via Musicians <musicians(a)lists.sharedweight.net>
*Sent:* Saturday, June 6, 2020 9:11 PM
*To:* Seth Seeger <seth(a)tofutavern.com>
*Cc:* musicians(a)sharedweight.net
*Subject:* [Musicians] Re: What Key is it?
Hi,
Thanks for the analysis!
Here's my spin on it, rooted partly in my background in the music of the
eastern Mediterranean and SE Europe.
The notion of a "mode" is different than the notion of a "scale". A
"scale" tells you which notes to play. A "mode", in addition to this,
also
gives you guidelines for forming melodies using those notes. Being the
technical person that I am, I think of it a bit like the mathematical
notions of a scalar vs. a vector: A "mode" also gives you a direction.
That is the difference between the Ionian and Hypoionian modes: They have
the same scale, but one of them resolves to the 4th note instead of the 1st
note (the "tonic").
And really, even our friend the "major scale" is really a mode, or, we use
it as a mode: It resolves to the tonic, and uses the 5th note (the
"dominant") as a sort of frequent layover; the 1st and 5th notes together
anchor the melody.
(There are modes in the world where that other anchor note, that layover
note, is not the 5th. I don't know enough about Western modes to know if
any of them do that.)
Now: That other anchor - the dominant - splits the mode into 2 pieces.
Let's take a C major scale:
C D E F G a b c
The 5-note bottom component of the mode, from the tonic to the dominant,
is:
C D E F G
The 4-note top component of the mode, from the dominant to the next tonic,
is:
G a b c
The bottom part is a major group - it comprises the beginning of a major
scale.
The top part is also a major group - it's sort of like the beginning of
its own major scale, starting on G.
So: A major scale consists of a major group on the bottom + a major group
on top.
A myxolydian scale consists of a major group on the bottom + a minor group
on top.
A Dorian scale consists of a minor group on the bottom + a minor group on
top.
As for the minor scale (I assume you mean natural) - it has a minor group
on the bottom, and a top group that has its own distinct sound - Phrygian.
So, the four mainstream modes are composed of 3 types of groups:
* Major group: Has a sharp, happy sounding 3rd. Examples:
- D E F# G A
- G A B C
* Minor group: Has a flat, sentimental or mystical sounding 3rd. Examples:
- D E F G A
- G A Bb C
* Phrygian group: Has that distinct drooping sort of sound, with the flat
3rd as well as flat 2nd. Examples:
- D Eb F G A
- G Ab Bb C
So:
* Identify the two anchor notes: The tonic and the dominant.
* Identify the types of the two groups comprising the scale - the 5-note
group from the tonic to the dominant and the 4-note group from the dominant
to the next tonic.
There - you have your mode (well, technically, scale).
If you feel a compulsion to assign a name to the mode:
[ major -- major ] = major
[ major -- minor ] = Myxolydian
[ minor -- minor ] = Dorian
[ minor -- Phrygian ] = minor
Zei gezunt,
Yaron