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Contents

module HeadMusic::Style::Annotations
end

class HeadMusic::Style::Annotations::MostlyConjunct < HeadMusic::Style::Annotation
  MESSAGE = "Use mostly conjunct motion."

  def marks
    marks_for_skips_and_leaps if conjunct_ratio <= 0.5
  end

  private

  def marks_for_skips_and_leaps
    melodic_intervals.map.with_index do |interval, i|
      HeadMusic::Style::Mark.for_all(notes[i..i+1], fitness: HeadMusic::SMALL_PENALTY_FACTOR) unless interval.step?
    end.compact
  end

  def conjunct_ratio
    return 1 if melodic_intervals.empty?
    steps = melodic_intervals.count { |interval| interval.step? }
    steps.to_f / melodic_intervals.length
  end
end

Version data entries

6 entries across 6 versions & 1 rubygems

Version Path
head_music-0.14.8 lib/head_music/style/annotations/mostly_conjunct.rb
head_music-0.14.7 lib/head_music/style/annotations/mostly_conjunct.rb
head_music-0.14.5 lib/head_music/style/annotations/mostly_conjunct.rb
head_music-0.14.4 lib/head_music/style/annotations/mostly_conjunct.rb
head_music-0.14.2 lib/head_music/style/annotations/mostly_conjunct.rb
head_music-0.14.1 lib/head_music/style/annotations/mostly_conjunct.rb