This lesson was made to accompany the modes
series, where we looked at the individual modes of the major
scale and how you can use them as unique scales in their own right.
Now we're going to learn how to identify modal chord progressions
so we can apply the modes (e.g. in a solo) confidently over their
related chord changes.
It's about building a chord scale that ties in with the sequence of
modes we learned. Each mode builds a related chord.
Take your time with this. There's a fair bit of overlap between this
lesson and other concepts covered in the theory section, such as chord
construction, so please
make sure you've been through that section from top to bottom first.
Video introduction to using modes over chord progressions
The
theory behind modal chord scales
In the modes series, we identified 7 modes. Each mode
was built on a degree/note of its parent scale - e.g. mode 2 Dorian was built
on the 2nd
degree of the major scale. Mode 5
Mixolydian was built on the 5th
degree etc.
We also learned each mode as major, minor or diminished (7th mode
Locrian - the "odd one out").
The same
applies when building chords
on the degrees of the major scale.
Below
is a diagram showing the intervals of the major scale. Each yellow box
can be seen as a degree of the major scale, so each one also represents
a mode, from 1 (Ionian) to 7 (Locrian) and then back to 1 again.
The numerals correspond to the mode number 1-7. You can also see that
the maj/min
label corresponds with that mode's flavour. For example,
3rd mode Phrygian is a minor mode, so therefore the 3 (iii)
chord
will also be minor. 4th mode Lydian is a major mode, so therefore the 4
(IV) chord will also be... yep, major! It's just like superimposing
chords onto the mode patterns, using some or all of the mode's tones in
the chord.
By knowing the interval sequence between each mode (covered in the "big picture" lesson of the
series), we automatically know the interval sequence of the modal chord scale.
So, based on this knowledge, if we were to assign the root chord of the
sequence - I
- as E major,
the sequence would progress as follows...
In modal terms, that's E
Ionian, F#
Dorian, Ab
Phrygian, A
Lydian, B
Mixolydian, C#
Aeolian, Eb
Locrian and then the octave E Ionian (from which the
sequence repeats).
Remember, this is a movable relationship, so if the I chord
(also called the "tonic") changed to D major, the same
interval sequence would be built accordingly. This is why it's
important to know the the fretboard!
Once we're confident with building these interval sequences in any key (the key
being defined by the tonic I
note/chord), we can then move on to learning how to identify modal
chord sequences - applying the correct mode to chord combinations from
this scale.
Common
modal chord progressions
For these examples, we'll use the C
major chord scale, which means the Ionian/I chord will be
C major. But remember, the sequences we build are relative to wherever
that tonic Ionian/I chord lies.
Degree
I
ii
iii
IV
V
vi
vii
Mode
Ion
Dor
Phr
Lyd
Mix
Aeo
Loc
Chord
C
Dm
Em
F
G
Am
Bdim
So, from that C major chord scale, we can assign a tonic chord to each
of its degrees, to build progressions around its associated
modes. To
make it a modal progression, it
must resolve to a tonic chord
within that scale. Let's look at some examples:
Locrian has been left out simply because Locrian's associated chord -
the diminished (m7b5) chord - isn't really appliable as a tonic chord. In
other words, it doesn't provide a resolution to a progression because
it naturally sounds unresolved!
Locrian, therefore, is used as more of a modal link/bridge between two
other
chords in the scale (mainly, the vi minor and I major tonics).
So, hopefully from listening to those examples above, you can hear a
different tonic/resolution chord in each modal progression we use. It's
this stable tonic chord that brings out the mode's unique flavour.
In a nutshell...
Each mode has its own tonic chord.
Chord progressions can be built around each
mode to highlight their tonic. The tonic therefore also defines the key of the
progression.
The chord progressions are built using related
chords from other modes in the same
modal scale.
If you have any questions about what we've covered here, let
me know! It will help me
improve these lessons.