1. Theory of Western Music: Outline of the 3rd Class (April 2, 2010)
Basic Chord: “Inversion”
Root position(5 1st inversion(6 2nd inversion(6
3) 3) 4)
7th Chord:
Rood position (7) 1st inversion(6 2nd inversion(6 3rd inversion(6
5) 4 4
3) 2)
Doubling the root: In chord progression we should start constructing our chord by doubling its root.
Following is an example of C major chord where C is doubled. Now we have four parts of the chord.
“S A T B” represents Soprano, Alto, Tenor and Base starting from the top to the bottom of four part chord.
Chord progression: rule #1: Do not use parallal cotaves and 5ths in Soprano and Base when writing two
chords.
Otaves(C-C, G-G) 5ths(C-G, G-D)
rule #2: Use step wise motion in soprano parts when writing two chords. Base notes do not need step wise
motion. In the example below C is going to B which is a step wise motion.
C Major: I V I