C AlteredScale

Formula

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

C Altered on the chromatic circle

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

W H W W W W H ♭2 D♭I Melodic minor ♭3 E♭II Dorian ♭2 ♭4 F♭III Lydian augmented ♭5 G♭IV Lydian dominant ♭6 A♭V Mixolydian ♭6 ♭7 B♭VI Locrian ♮2 1 CVII Altered C Altered
The whole neck

C Altered 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

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°Cm7♭5C E♭ G♭ B♭
♭iiD♭m(maj7)D♭ F♭ A♭ C
♭iiiE♭m7E♭ G♭ B♭ D♭
♭IV+F♭maj7♯5F♭ A♭ C E♭
♭VG♭7G♭ B♭ D♭ F♭
♭VIA♭7A♭ C E♭ G♭
♭vii°B♭m7♭5B♭ D♭ F♭ A♭
Context

Where C Altered fits

Over an altered dominant 7 (♭9, ♯9, ♯11, ♭13) resolving to the tonic in jazz: the V7alt of a ii–V–I.

C Altered is mode 7 of the melodic 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 scale in every key

C Altered scale questions

What notes are in the C Altered 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 scale formula?

1 ♭2 ♭3 ♭4 ♭5 ♭6 ♭7, or in steps between the notes, H W H W W W W (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 scale on guitar?

This page draws every note of C Altered 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 scale?

Cm7♭5 (i°), D♭m(maj7) (♭ii), E♭m7 (♭iii), F♭maj7♯5 (♭IV+), G♭7 (♭V), A♭7 (♭VI), B♭m7♭5 (♭vii°).

When is the C Altered scale used?

Over an altered dominant 7 (♭9, ♯9, ♯11, ♭13) resolving to the tonic in jazz: the V7alt of a ii–V–I.