Every seventh chord is made up of the 1st, 3rd, 5th and b7th notes of the major scale
Choose a chord below to see an example (with chord diagrams)
E
|
The E major scale is
E
|
F#
|
G#
|
A
|
B
|
C#
|
D#
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
To make an “E seventh” (E7) chord we use
the 1st note E
the 3rd note G#
the 5th note B
the b7th (half step lower from the 7th)
note D.
This gives us the notes E, G#, B and D which form the “E
seventh” chord
"E seventh" (E7) on the guitar
"E seventh" (E7) on the piano