C Altered 𝄫7Scale

Formula

H W H W W H 1½ 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7
The family

C Altered 𝄫7 on the chromatic circle

C Altered 𝄫7 is the 7th mode of the Harmonic minor family. Pick another note on the circle to open the scale that starts there.

W H W W H 1½ H ♭2 D♭I Harmonic minor ♭3 E♭II Locrian ♮6 ♭4 F♭III Ionian ♯5 ♭5 G♭IV Dorian ♯4 ♭6 A♭V Phrygian dominant 𝄫7 B𝄫VI Lydian ♯2 1 CVII Altered 𝄫7 C Altered 𝄫7
The whole neck

C Altered 𝄫7 across the fretboard

Every note of the scale up to the 16th fret, named by its degree. The root is a ring. Step through the five CAGED positions one at a time in the scale library.

3 5 7 9 12 15 ♭4 ♭5 ♭6 𝄫7 1 ♭2 ♭3 ♭4 ♭5 𝄫7 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7 1 ♭3 ♭4 ♭5 ♭6 𝄫7 1 ♭2 ♭3 ♭4 ♭6 𝄫7 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7 1 ♭2 ♭4 ♭5 ♭6 𝄫7 1 ♭2 ♭3 ♭4 ♭5
Harmony

Chords in C Altered 𝄫7

Stack every other note of the scale from each degree and you get its chords. Open any of them in the chord library.

DegreeChordNotes
i°C°7C E♭ G♭ B𝄫
♭iiD♭m(maj7)D♭ F♭ A♭ C
♭iii°E♭m7♭5E♭ G♭ B𝄫 D♭
♭IV+F♭maj7♯5F♭ A♭ C E♭
♭vG♭m7G♭ B𝄫 D♭ F♭
♭VIA♭7A♭ C E♭ G♭
𝄫VIIB𝄫maj7B𝄫 D♭ F♭ A♭
Context

Where C Altered 𝄫7 fits

Over the diminished 7 chord on the 7th degree of a minor key, resolving to the tonic.

C Altered 𝄫7 is mode 7 of the harmonic minor family. The same notes played from each of its other degrees give the family's other modes:

Move one note by a half step and you get a different scale:

Altered 𝄫7 scale in every key

C Altered 𝄫7 scale questions

What notes are in the C Altered 𝄫7 scale?

C D♭ E♭ F♭ G♭ A♭ B𝄫. As degrees from the root: 1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7.

What is the C Altered 𝄫7 scale formula?

1 ♭2 ♭3 ♭4 ♭5 ♭6 𝄫7, or in steps between the notes, H W H W W H 1½ (W is a whole step of two frets, H a half step of one fret, 1½ three frets).

How do you play the C Altered 𝄫7 scale on guitar?

This page draws every note of C Altered 𝄫7 up to the 16th fret, each named by its degree with the root as a ring. To learn it a few frets at a time, open it in the scale library and step through its five CAGED positions, from the C shape to the A shape to the G shape to the E shape to the D shape.

What chords are in the C Altered 𝄫7 scale?

C°7 (i°), D♭m(maj7) (♭ii), E♭m7♭5 (♭iii°), F♭maj7♯5 (♭IV+), G♭m7 (♭v), A♭7 (♭VI), B𝄫maj7 (𝄫VII).

When is the C Altered 𝄫7 scale used?

Over the diminished 7 chord on the 7th degree of a minor key, resolving to the tonic.