18.41Altered dominant preview

Suppose:

G7 → C

and you want maximum tension.

You might use altered notes:

A♭ = ♭9

B♭/A♯ = ♯9

D♭ = ♭5/♯11

E♭ = ♭13

A scale containing these tensions is commonly called the altered scale.

For G:

G A♭ B♭ B D♭ E♭ F

depending on spelling.

We are not memorizing this yet.