Sha256: 0d6624c27c4a627f2ea44c9cfe8347adbca43a410cfdfc2db15e81973126d1f5
Contents?: true
Size: 636 Bytes
Versions: 9
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Stored size: 636 Bytes
Contents
# Module for style guidelines. module HeadMusic::Style::Guidelines; end # A counterpoint guideline class HeadMusic::Style::Guidelines::PreferContraryMotion < HeadMusic::Style::Annotation MESSAGE = "Prefer contrary motion. Move voices in different melodic directions." def marks return nil if notes.length < 2 return nil if direct_motion_ratio <= 0.5 direct_motions.map { |motion| HeadMusic::Style::Mark.for_all(motion.notes) } end private def direct_motions motions.select(&:direct?) end def direct_motion_ratio return 0 if motions.empty? direct_motions.count / motions.count.to_f end end
Version data entries
9 entries across 9 versions & 1 rubygems