Bb Locrian

The scale displayed with its numeric formula, notes, intervals and scale degrees.

The second degree is written as Cb, which is the same as B. The fifth degree is written as Fb, which is the same as E. A practice in a scale notation is to not include the same letter twice, if it can be avoided.

The B flat Locrian scale consists of seven notes. These can be described as steps on the guitar fingerboard according to the following formula: half, whole, whole, half, whole, whole, whole from the first note to the same in the next octave.
The Bb Locrian is a mode of the B Major Scale. It contains exactly the same notes, but starts on another note.

This scale is primarily used in jazz and is rare in popular music.
One way to learn this scale is to think of it as the B Major starting from its seventh note. Another way is to think of it as the Bb Phrygian with a flattened 5th.

Chords that are related to this scale are the following:

The tones in these chords correspond to the tones of the Bb Locrian scale.

Related to Locrian are Locrian ♮2 and Locrian #6, being the 4th mode of the Melodic Minor and the 2nd mode of the Harmonic Minor.

The Bb Locrian ♮2 scale, also called Bb Half-diminished scale, is identical with the Bb Locrian except for a major second instead of a minor second which is indicated by the natural symbol. It can be displayed as follows:

The Bb Locrian ♮2 contains the same notes as the Db Melodic Minor Scale, but starts on another note.

The Bb Locrian #6 scale is identical with the Bb Locrian except for a major sixth instead of a minor sixth which is indicated by the sharp symbol in the name. It can be displayed as follows:

The Bb Locrian #6 contains the same notes as the Ab Harmonic Minor Scale, but starts on another note.