Note that this lesson is part of the Guitar Modes
series. The Aeolian mode is the 6th
mode
of the major scale. Therefore, Aeolian begins on the 6th degree of the
major scale.
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When referenced in a non-modal context, the Aeolian mode is simply
known as
the natural minor scale.
Why "natural"? For one, this helps us distinguish it from other
minor scales (e.g. harmonic and melodic minor). Don't worry about those
right now.
Just like the other modes, Aeolian has it's own
unique flavour and is probably the most commonly used minor mode in music (especially contemporary, popular music).
Don't know what the W's
and H's
mean? If so, take the intervals
lesson here before you go on.
From
the previous minor mode lessons (Phrygian and Dorian), you should be
familiar with the significance of the flat 3rd (♭3), also
known as the
minor 3rd.
This makes Aeolian a minor mode, as it includes the basic minor triad
(also used to create minor chords): 1 ♭3 5.
You should also know how the flat
7th (♭7) is a natural tone used in the minor modes.
We learned that the flat
6th
was part of Phrygian (another minor mode), but because the rest of
Aeolian is slightly different to Phrygian, that flat 6th will paint a
rather different picture, when used with the other tones in the scale.
Listen to the Aeolian interval sequence below, which makes use of its
key tones, to introduce you to its "flavour":
As with the other mode lessons, let's first look at Aeolian mode in its
first position
boxed pattern:
Later in the series, we'll look at how to expand out of that box and
use more of the guitar's fretboard to play Aeolian. This will free up
your finger movements to allow more fluid
soloing.
For now though, just get to know where each of
Aeolian's tones lie within that space of 5 frets.
See how it spans 3 root notes, so you effectively have 3 octaves to
experiment with.
What about finger positions?
Watch out for that little back step in the pattern on the G string. You
may
have a better way of working around that. The above diagram is just a
guide!
Here's a simple example of using this box pattern in A...
As mentioned earlier, Aeolian is a minor
mode/scale
(due to the minor 3rd interval) so it will work over... minor chords! As a
mode, it will also work over a sequence of chords, but this will become
clearer when we play over the jam track later.
The key note to be careful with the Aeolian mode is the flat 6th. We heard
it earlier as part of an interval sequence, but over a minor chord it's
rather different.
See, if you hold the flat 6th over a minor chord, it won't sound too
harmonious. Take a listen:
It may be good for a kind of atmospheric, tense effect.
So how can we use the flat 6th more... musically? There are a couple of
ways to accomplish this. First, you
can use the flat 6th as a passing
tone. This is where you skip over it
as if it's a bridge between two more stable tones in the scale. For
example, you could sandwich the flat 6th within a sequence like this...
5 1 ♭7 ♭6 5
4 5
By
merging the flat 6th into a larger phrase, it puts it into context and
therefore removes the unharmonious tension created if you simply hold
the flat 6th over a minor chord.
You can also use the flat 6th in a hammer-on/pull-off sequence:
So
the main thing to remember when you're creating phrases in Aeolian is
to glance over that flat 6th tone as part of a sequence,
rather than
emphasising the flat 6th as a resting note.
All
the other tones of Aeolian are pretty neutral as far as minor harmony
goes. In fact, leave out the ♭6 and you're simply left with the minor
pentatonic scale with an added 9th - used all the time in rock, metal
and blues.
Aeolian mode jam track
Ok! So here we are with another jam track to help us
experiment
with our own ideas.
Just like the other modes, Aeolian can work over more than one chord,
with the right chord progression. We call these modal chord
progressions because they support and highlight a given mode's color.
Below I've created a backing track in the key of A minor, which is
compatible with A Aeolian.
The main chord to focus on is known as the tonic chord.
This is, in
this example, A minor.
The other chords you'll hear in the progression
are also compatible with A Aeolian, but the notes of Aeolian will
interact differently with these non-tonic chords.
So, in a nutshell,
build up phrases over these chords, but focus the resolution of these
phrases on that tonic A minor chord. That tonic chord will bring out
the Aeolian flavour and disperse it through the progression in that context.
Just
have fun with it. Don't, however, just play the Aeolian notes up or
down in sequence from 1 to 7, try skipping strings, staggering the
patterns of your phrases etc. but keep in mind what we've learned about
that rebellious flat 6th tone!