Locrian mode

The Locrian mode is the seventh mode of the diatonic scale. On the C diatonic it starts with B and uses only the white keys up to the next B which is one octave higher. Its ascending form consists of the tonic, half step, whole step, whole step, half step, whole step, whole step, whole step.

 {
\key c \major
\override Score.TimeSignature #'stencil = ##f
\relative c' { 
  \clef treble \time 7/4
  b4^\markup { Locrian mode } c d e f g a b2 

} }