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Scale · Reference entry

B♭ Super Locrian Scale (Altered Scale)

Super Locrian Scale · B♭ – C♭ – D♭ – E♭♭ – F♭ – G♭ – A♭ – B♭ · intervals P1-m2-m3-d4-d5-m6-m7

The B♭ Super Locrian Scale (Altered Scale) contains the notes B♭, C♭, D♭, E♭♭, F♭, G♭, and A♭. Its step pattern is H-W-H-W-W-W-W. Also called the altered scale — 7th mode of melodic minor, used over altered dominants in jazz.

At the keyboard

Cb · Bb · Db · Ebb · Fb · Gb · Ab
Flashcards · Scale
Three questions on B♭ Super Locrian Scale (Altered Scale)
Answer on the keyboard, not with buttons. No login required.

The B♭ Super Locrian scale contains seven notes: B♭, C♭, D♭, E♭♭, F♭, G♭, and A♭. It follows the whole-step / half-step pattern H-W-H-W-W-W-W.

B♭ Super Locrian Scale (Altered Scale) Notes

DegreeNameNoteInterval
1TonicB♭P1
2SupertonicC♭m2
3MediantD♭m3
4SubdominantE♭♭d4
5DominantF♭d5
6SubmediantG♭m6
7Leading ToneA♭m7
8OctaveB♭

Key Signature

The B♭ Super Locrian Scale (Altered Scale) doesn’t line up with a single major or minor key, so it has no standard key signature. Its notes are written with accidentals as needed.

Accidentals

B♭C♭D♭E♭♭F♭G♭A♭

Diatonic Chords in the B♭ Super Locrian Scale (Altered Scale)

These are the triads built on each degree of the B♭ Super Locrian Scale (Altered Scale):

C1C2C3C4C5F♭C6C7C8B♭D♭
B♭ Diminished (diminished)
DegreeNumeralChordQuality
1B♭ DiminishedDiminished
2iiC♭ MinorMinor
3iiiD♭ MinorMinor
4IV+E♭♭ AugmentedAugmented
5VF♭ MajorMajor
6VIG♭ MajorMajor
7vii°A♭ DiminishedDiminished

B♭ Super Locrian Scale (Altered Scale) — Frequently Asked Questions

What are the notes of the B♭ Super Locrian Scale (Altered Scale) on piano?
The B♭ Super Locrian Scale (Altered Scale) uses the notes B♭ – C♭ – D♭ – E♭♭ – F♭ – G♭ – A♭ – B♭. Play them in order from the root up to the octave, hands separately first, then together.
What notes are in the Bb Super Locrian Scale?
The Bb Super Locrian Scale contains seven notes: Bb – Cb – Db – Ebb – Fb – Gb – Ab. The notes table above shows each note with its scale degree and interval from the root.
How many sharps or flats does Bb Super Locrian have?
The Bb Super Locrian Scale doesn't correspond to a single major or minor key, so it has no standard key signature. Its notes are written with accidentals as needed: B♭, C♭, D♭, E♭♭, F♭, G♭, A♭.
What does the Bb Super Locrian Scale sound like?
The Bb Super Locrian Scale has an unstable, dissonant character built on a diminished tonic. As a mode, it shares notes with a parent major scale but feels different because a different note acts as the tonal center.

Related Tools

Circle of FifthsVisualize key relationships, relative minors, and key signatures.Chord FinderLook up any chord — see the notes, hear it, and play along.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Chord DrillTimed drills to build speed and recognition across all chord types.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.

References & Further Reading

The note names, intervals, fingering, and harmony on this scale page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data is piano.org's own interval-derived reference dataset — continuously maintained and human-verified, with no fixed publication date.

  1. 1

    Prout, Ebenezer(1889)

    Harmony: Its Theory and Practice

    Public domain treatise
  2. 2

    Goetschius, Percy(1889)

    The Material Used in Musical Composition

    Public domain treatise
  3. 3

    Riemann, Hugo(1896)

    Harmony Simplified (English translation)

    Public domain treatise
  4. 4

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