What is the C Altered (Super Locrian) Scale?

The Altered scale (7th mode of melodic minor) contains every possible alteration of a dominant chord: b9, #9, #11, and b13. It creates maximum tension before resolution, essential for modern jazz dominant chord playing.

Interval Pattern: H-W-H-W-W-W-W

Scale Notes and Intervals

C Altered (Super Locrian)

Tense
C 1
Db 2
Eb 3
Fb 4
Gb 5
Ab 6
Bb 7
Notes:
C -Db -Eb -Fb -Gb -Ab -Bb
Intervals:
HWHWWW W

Keyboard Visualization

How to Play C Altered (Super Locrian) on Piano

Scale Properties

Mood

Tense

Character

Dominant altered, dissonant

Genres

Jazz, Fusion

Notes in Scale

7 notes: C, Db, Eb, Fb, Gb, Ab, Bb

Category

Jazz

Intervals

H-W-H-W-W-W-W

History and Origins

The Background of the Altered (Super Locrian) Scale

Derived from the melodic minor scale, it became central to bebop and post-bop jazz. Musicians like John Coltrane and Michael Brecker made it a cornerstone of their harmonic vocabulary for creating tension before resolution.

Musical Characteristics

Key Features of the C Altered (Super Locrian) Scale

  • All altered tensions on a dominant chord
  • b9, #9, #11, b13 all present
  • 7th mode of melodic minor
  • Maximum tension before resolution

Famous Songs Using This Scale

Popular Tracks in C Altered (Super Locrian)

  • Giant Steps - John Coltrane (over dominant chords)
  • Donna Lee (bebop alterations)
  • Moment's Notice - John Coltrane

Playing Tips

How to Practice the C Altered (Super Locrian) Scale

Think melodic minor a half step up. Use over V7 chords resolving to minor or major. The more you lean into the alterations, the more tension you create. Essential for modern jazz.

Circle of Fifths Position

C in the Circle of Fifths

CGDAFbBGbDbAbEbBbFAmFbmBmGbmDbmAbmEbmBbmFmCmGmDmCminor
Major
Minor
Selected

Transpose to Other Keys

Altered (Super Locrian) Scale in All 12 Keys

Related Scales

Similar Scales in the Key of C

Scale Diagram

C Altered (Super Locrian) Keyboard Diagram

C Altered (Super Locrian) scale shown on piano keyboard with notes C, Db, Eb, Fb, Gb, Ab, Bb highlighted