Earlier I wrote a post called
The art of the added subV7
on adding subV7s to chord progressions in order to give them more
interesting tension and resolution. There are many other ways to add V7s
to chord progressions when you are soloing besides just adding tri-tone
subs and I'll cover some of these in this post.
I
already showed you how to effectively add a altered Dominant a fifth
above (or a Lydian Dominant a half-step above- same difference) the
chord you are on (or going to) by playing a melodic minor scale a Major
third below the target chord. I'm reposting an example of this below to
refresh your memory:
(click on the above graphic for a larger version)
There
are some other harmonic techniques that I often use along the same
lines as the above example. One of the first rules of chord substitions
is that you can add a related V7 before ANY chord. This means that I can
use any type of dominant scale option, not just a mixolydian scale.
Actually, the more alterations use use in these added dominants the
better. This is because you want to create enough dissonance so that
when you do resolve to your target chord there is a strong resolution.
For example, if you were adding a passing V7 to a bar of CMaj7 and you
chose G7 mixolydian then it wouldn't be clear to the listener that you
were adding anything because you'd still be in the same mode.
(added V7)
/ CMaj7 /G7 /CMaj7 /
Of
course this example works fine and is one of the most common types of
chord substitution, but if you play a single note instrument there isn't
much you can do with this most basic added V7. Instead we want to look
for dominant scales with more alterations to use for our added V7s.
Below
are the formulas for quickly finding scales for added V7s. These V7 can
be used as passing chords over static chords, as added V7 before moving
to a new chord in the progression, or as a way to create a delayed
resolution. For these examples I'll use the passing V7 of a static
target chord of D-7. So imagine we're playing Impressions and looking
for ways to momentarily move outside by playing the related V7 of D-7,
which is A7.
1. Pentatonic up a half-step from target: Eb pentatonic= A7alt= (#11, b13, b7, b9, #9)
2. Whole tone up or down a half-step from target chord: Eb w.t. = A+7
3. Diminished down a half step from target chord: C# diminished= A7(b9)
4. Major triad half-step above target and Major triad a minor third above target chord: Eb Maj + F Maj=A7alt
5. Melodic minor a Major third below root of target chord: Bb melodic minor= A7alt
6. Melodic minor a whole-step above target chord: E melodic minor= A7(#11)
7. Harmonic Major up a minor third from target chord: F harmonic Major= A7(b9, #9, b13)
8. Harmonic minor down a Major third down from target chord: Bb harmonic minor=A7(#11, b9, #9, b13)