Originally posted by RicPlaya
quote:
This is why it is essential to learn the nine chord families ,their horizontal counterparts-the corresponding scales , recognize how each of these chord families FUNCTION in a tune- either as a ii , a V or a I chord
I have no clue what this is?
It's modern harmony and theory in "a nutshell"
if I were starting over,I would find a way to simplify and condense harmony and theory.
The major scale is created by isolating ,or restricting tones from the chromatic scale. Two whole steps,a half step,three whole steps and then a half step is the "formula".You start on any note and by "measuring 1-1-1/2-1-1-1-1/2 , you always get the major scale. By starting a major scale on the 3rd degree, you create a phrygian mode.By starting the major scale on the 5th degree, you get the mixolydian mode.By starting the major scale on the 7th degree ,you get locrian.
If you pile the phrygian on top of it's major scale, the mixolydian on top of that,and the locrian on top of that , you have created the diatonic four part chords of that major scale
Ex.
locrian : b-c-d-e-f-g-a-b-
mixolydian g-a -b-c-d-e-f-g
phrygian; e-f-g-a-b-c-d-e
Major: c-d-e-f-g-a-b-c
I- ii-iii-iv- V-vi-vii
You have Cmaj7th ,the one (I) chord in the key of C ,and d minor 7 (ii mi7) the two (ii) chord in C major ,and G7 (V) the five chord .These are the definitive chords of C major. They are vertical results of stacking horizontal scales. These three chords are three of the nine chord families that define tonality. You don't have a tune without the ii-V-I "gravity."
ii or iv will lead to V7 and it always resolves to I. Some chord progression you must know are I-vi-ii-V7-I (cmaj-ami-dmi-g7-cmaj ) or iv-V7-I (f-g7-c) .
So if you learn all nine chord families,or vertical stacks ,the horizontal scales that stack up to make these chords, learn how each stack funtions (ii ,V or i) and recognize the function in a progression (i-vi-ii-V7-i) , you are grasping the essence of Theory.. What good is knowing modes and their names if 1) you can't identify them by ear, and 2) knowing how they relate to music theory?
Every bass note you play is part of a chord progression .Knowing chord progressions allows you to know what notes come next .The quality of the chord, a ii or a V or a i ,tells you what chord family you are currently playing through and what your harmonic choices are.
"This" is an overview of what it is you need to know.