lib/head_music/style/analysis.rb in head_music-0.10.0 vs lib/head_music/style/analysis.rb in head_music-0.11.1

@@ -4,10 +4,13 @@
       attr_reader :ruleset, :subject, :annotations
 
       def initialize(ruleset, subject)
         @ruleset = ruleset
         @subject = subject
-        @annotations = @ruleset.analyze(subject)
+      end
+
+      def annotations
+        @annotations ||= @ruleset.analyze(subject)
       end
 
       def fitness
         annotations.map(&:fitness).reduce(1, :*)
       end