class HeadMusic::Style::Guidelines::PrepareOctaveLeaps
A counterpoint guideline
Constants
- MESSAGE
Public Instance Methods
marks()
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# File lib/head_music/style/guidelines/prepare_octave_leaps.rb, line 10 def marks (external_entries + external_exits + octave_ending).map do |trouble_spot| HeadMusic::Style::Mark.for_all(trouble_spot) end end
Private Instance Methods
external_entries()
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# File lib/head_music/style/guidelines/prepare_octave_leaps.rb, line 18 def external_entries melodic_intervals.each_cons(2).map do |pair| first, second = *pair pair.map(&:notes).uniq if second.octave? && !second.spans?(first.first_note.pitch) end.compact end
external_exits()
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# File lib/head_music/style/guidelines/prepare_octave_leaps.rb, line 25 def external_exits melodic_intervals.each_cons(2).map do |pair| first, second = *pair pair.map(&:notes).uniq if first.octave? && !first.spans?(second.second_note.pitch) end.compact end
octave_ending()
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# File lib/head_music/style/guidelines/prepare_octave_leaps.rb, line 32 def octave_ending octave_ending? ? [melodic_intervals.last.notes] : [] end
octave_ending?()
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# File lib/head_music/style/guidelines/prepare_octave_leaps.rb, line 36 def octave_ending? melodic_intervals.last&.octave? end