Shape Up! - A Melodic Minor ii-V7 Shape
The simplicity and symmetry of this little shape make for a perfect warmup type exercise, especially when taken through all the keys.
If you're looking for a way to familiarize yourself with the sound and feel of a Melodic Minor ii-V (using two different Melodic Minor scales), right here might not be a bad place to start.
Adding a suggested left hand piano voicing was done originally for my own edification (I am definitely a non-pianist). As with the line itself, the left hand comping rhythm varies between the first and second four bars - the first 4 is in whole notes; the second 4 broken up rhythmically to compliment the line itself, as well as to add a further rhythmic dimension.
Take a look:
Have a Listen:
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The basic melodic breakdown goes something like this:
Line #1, measure #1| ii - E-7b5 - G Melodic Minor (E Locrian ♮2, hence the F#).
Line #1, measure #2| V7 - A7alt - Bb Melodic Minor (A altered - b7 = G, b9 = Bb, b13 = F, root = A, b7 = G, b5 = Eb, 3 = Db (C#), b13 = F)
Line #1, measures #3 & 4| I or i - resolves to D..., but D what? If you take a look at the left hand voicing D-A-B-C# (with an E in the melody), you'll notice that the 3rd, either Major or minor (F# or F), has been omitted; so you be the judge. It's purposely meant to be ambiguous here, in order to work with both Maj. & min. melodic material.
In making a comparison of the line between bars #1 & #2 (the ii & V chords), we notice that while both phrases are not exactly symmetrical in their comparative interval relationships, they're virtually identical in regards to their shape. The directions and numerical values of the intervals are all the same; the differences lie only in their qualities (i.e., Maj. vs. min. 2nds and 3rds). Check it out.
Meas. #1 - M3-P4-m3-m2-M3-m2-m3
Meas. #2 - m3-P4-M3-M2-M3-M2-M3
Except for the second and fifth intervals of each measure, all the other interval qualities are reversed. The fact that in measure #2, the altered dominant (altered scale) pattern begins a minor third lower than in bar #1, might have something to do with this phenomenon.
For those of you who are familiar with using different Melodic Minor scales over a ii-7b5 and a V7alt (The Melodic Minor Handbook), a common trick is to transpose exactly what's played on the ii chord, up a min. 3rd to the V. This creates a true symmetrical relationship between the the two phrases, with all their intervals being exactly the same in each case.
In this case, though, starting the second Melodic Minor phrase a minor 3rd lower creates an almost complete inverse interval relationship of sorts.
Kinda gives ya goose bumps, doesn't it?!
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Treble Clef