Chords Part II

In this article you will learn, how the diminished chords and the seventh chords are formed.
Lets take an A major scale again-

A -B C# .D -E- F# G# A
1 _2 _3 _4 -5 -6 _7 _.8

Major Seventh - 1 3 5 7 - Amaj7 - A C# E G#

Minor Seventh - 1 3b 5 7b - Am7 - A C E G

Dominant Seventh - 1 3 5 7b - A7 - A C# E G

Diminished chord - 1 3b 5b - Adim - A C D#


e----0----|----0----|----0------|----2----|
B----2----|----1----|----3------|----1----|
G----1----|----0----|----0------|----2----|
D----2----|----2----|----2------|----1----|
A----0----|----0----|----0------|---------|
E----0----|---------|-----------|---------|
__Amaj7___Am7_______A7__ __Adim