HOST- Jeremy Burns, Matthew Scott Phillips
GENRE- Theory
DURATION- 71:00
BUMPER MUSIC- "Prelude in Em" (F. Chopin, performed by Angela Senicz)
ANNOUNCER- Mike Cunliffe
Continuing from episode 112 (Altered Chords Pt.3), we will top off our discussion of altered chords. Ready your theory brain for coloristic chord successions, chromatic sequences and non sequential linear processes!
-These make use of chords that are foreign to the key in non traditional ways.
-One way to do this is through unexpected root movements to chords that are foreign to the key you’re in.
-A lot of times these progressions involve CHROMATIC MEDIANT relationships. Two triads are said to have this relationship when their roots are a major or minor 3rd apart and one root is foreign to the key.
-Even more distantly related would be the DOUBLY CHROMATIC MEDIANT relationships. Two triads are said to have this relationship when one is major and the other is minor (or vice versa), the roots are a 3rd apart AND they share no common tones.
-In analysis, we would simply name the root of the chord and the sonority below.
-In this example, we are in the key of Dm. The first chord is Dm, or the i chord. The second chord is an F# minor chord.
-Because F is the 3rd of D minor, an F# is still considered to be of a MEDIANT relationship.
-Because it is rooted in F# (foreign to D minor) it is considered to be of a CHROMATIC MEDIANT relationship to the preceding chord, D minor.
-Unfortunately, in our analysis, all we can call this is an F#m chord.
Below we see two chord progressions.
The progression in m.1-2 is a DIATONIC DESCENDING CIRCLE OF FIFTHS sequence.
We have a i - vi - ii - V. All the notes are in the "home" key of G major.
The progression in m.3-4 is a CHROMATIC DESCENDING CIRCLE OF FIFTHS sequence.
We have a i - V/ii - V/V - V. The G# in the 2nd chord makes it a V/ii, rather than the more diatonic vi chord. The C# in the 3rd chord makes it a V/V, rather than the more diatonic ii chord.
Below, we see a 4 chord progression in D major.
Notice that chords 1 (D major) and 3 (E minor) are DIATONIC to D major and in root position.
However, chords 2 (B7 6/5) and 4 (C#7 6/5) are CHROMATIC to D major and in 1st inversion.
On the chord analysis (top row), the note on the right side of the slash tell us what note is in the lowest voice. This is NOT the root, but the bass voice. This makes it possible to have a bass line that ascends CHROMATICALLY.
Below, in Bm, we use the same strategy as above. Only, we change the chords and inversions to accommodate for a CHROMATIC DESCENDING bass line.
Try to study this passage, as we listen, and then consider some of the techniques given below that contribute to the NON SEQUENTIAL LINEAR PROCESSES.
Below, see where I (Jeremy) tried to build chords that makes sense. Notice, that most of these chords are not carrying out their expected functions. One exception is in the last 3 measures where we see a iv - V - i, rounding off the section.