イ Locrian Scale
The イ Locrian scale contains 7 notes: イ, 変ロ, ハ, ニ, 変ホ, ヘ, ト.
イ Locrian scale on the piano
重要ポイント
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.
イ Locrian uses the same notes as 変ロ メジャー, started from degree 7 instead of the first. The notes are shared; the tonic, and therefore the sound, is not.
イ 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 イ Locrian
| 音度 | 音 | 音程 | Semitones |
|---|---|---|---|
| 1 | イ | P1 | 0 |
| 2 | 変ロ | m2 | 1 |
| 3 | ハ | m3 | 3 |
| 4 | ニ | P4 | 5 |
| 5 | 変ホ | TT | 6 |
| 6 | ヘ | m6 | 8 |
| 7 | ト | m7 | 10 |
Chords in イ Locrian
These are the triads built on each degree of イ Locrian using only notes from the scale.
Other scales on イ
Every scale type that starts on イ, for comparison.
Locrian in every key
よくある質問
What notes are in the イ Locrian scale?
The イ Locrian scale has 7 notes: イ, 変ロ, ハ, ニ, 変ホ, ヘ, ト.
What is the formula for the イ Locrian scale?
The イ 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 イ Locrian derived from?
イ Locrian is the mode of 変ロ メジャー that starts on its 7 degree. Both scales use the same notes but resolve to a different tonic.
What chords are in the イ Locrian scale?
The triads built from the イ Locrian scale are イdim, 変ロ, ハm, ニm, 変ホ, ヘ, トm.
