lib/head_music/style/guidelines/diatonic.rb in head_music-0.27.0 vs lib/head_music/style/guidelines/diatonic.rb in head_music-0.28.0

@@ -3,11 +3,11 @@
 # Module for style guidelines.
 module HeadMusic::Style::Guidelines; end
 
 # A counterpoint guideline
 class HeadMusic::Style::Guidelines::Diatonic < HeadMusic::Style::Annotation
-  MESSAGE = 'Use only notes in the key signature.'
+  MESSAGE = "Use only notes in the key signature."
 
   def marks
     HeadMusic::Style::Mark.for_each(notes_not_in_key_excluding_penultimate_leading_tone)
   end
 
@@ -15,10 +15,10 @@
 
   def notes_not_in_key_excluding_penultimate_leading_tone
     notes_not_in_key.reject do |note|
       penultimate_note &&
         note == penultimate_note &&
-        HeadMusic::ScaleDegree.new(key_signature, note.pitch.spelling).sign == '#'
+        HeadMusic::ScaleDegree.new(key_signature, note.pitch.spelling).sign == "#"
     end
   end
 
   def penultimate_note
     voice.note_preceding(positions.last) if positions.last