Locrian is not commonly used. It’s most likely to be found in jazz compositions. It can feel quite uneasy and awkward.

• To play Locrian mode on the piano, just play all the white notes on a piano, starting on B.
• Locrian mode consists of notes with the following intervals: S-T-T-S-T-T-T
• As an example, make sure that “G#” is at the top of the circle. You can see that in order to play G# locrian mode, you simply need to play an A major scale, but concentrating on the G#.
• To see what notes are in a G# locrian scale, first put G# at the top of the circle and look at the note in the Locrian position — that is A, so G# locrian is achieved by using the A major scale. Then move A to the top of the circle and you can see what notes are in G# locrian, because they are the notes from the A major scale: G#, A, B, C#, D, E, F#.
• To play chords in G# locrian, first put G# at the top of the circle and look at the note in the Locrian position — that is A, so you play chords from the key of A major. Then move A to the top of the circle and you can see those chords, which are the chords for G# locrian: G#dim, A, Bm, C#m, D, E, F#m.
• Play any major scale but start on (concentrate on) the 7th note in order to achieve a locrian scale.
• G# locrian is relative to (contains all the same notes as) A major (or A ionian).