A Locrian Scale
The A Locrian scale contains 7 notes: A, B♭, C, D, E♭, F, G.
A Locrian scale on the piano
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What is the Locrian scale?
Locrian is the seventh mode of the major scale — a minor scale with both a lowered second and a lowered fifth. Because the fifth is diminished the tonic chord is unstable, so Locrian is used over half-diminished chords rather than as a key.
A Locrian uses the same notes as B♭ Majeur, started from degree 7 instead of the first. The notes are shared; the tonic, and therefore the sound, is not.
A Locrian is a scale, not a key. It has no key signature of its own — music that uses it is normally written in the key signature of its parent scale, with any extra accidentals added as they occur.
Scale degrees of A Locrian
| Trap | Noot | Interval | Semitones |
|---|---|---|---|
| 1 | A | P1 | 0 |
| 2 | B♭ | m2 | 1 |
| 3 | C | m3 | 3 |
| 4 | D | P4 | 5 |
| 5 | E♭ | TT | 6 |
| 6 | F | m6 | 8 |
| 7 | G | m7 | 10 |
Chords in A Locrian
These are the triads built on each degree of A Locrian using only notes from the scale.
Other scales on A
Every scale type that starts on A, for comparison.
Locrian in every key
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What notes are in the A Locrian scale?
The A Locrian scale has 7 notes: A, B♭, C, D, E♭, F, G.
What is the formula for the A Locrian scale?
The A Locrian scale follows the step pattern H–W–W–H–W–W–W, where H is a half step and W is a whole step.
What scale is A Locrian derived from?
A Locrian is the mode of B♭ Majeur that starts on its 7 degree. Both scales use the same notes but resolve to a different tonic.
What chords are in the A Locrian scale?
The triads built from the A Locrian scale are Adim, B♭, Cm, Dm, E♭, F, Gm.
