What key is Stormy Monday?
“Stormy Monday”, although written in the key of A flat major, is usually performed in the key of G major, follows the structure of an altered 12-bar blues, using the following chord progression: G 9 | C9 | G 9/A♭9 | G 9 |
What is C9 chord?
The C9 chord is composed of the notes C, E, G, Bb, and D. Ninth chords are a family of extended chords, created by adding the major (or minor) ninth to a seventh chord.