lib/head_music/circle.rb in head_music-0.17.0 vs lib/head_music/circle.rb in head_music-0.18.0

@@ -1,4 +1,9 @@
+# frozen_string_literal: true
+
+# A Circle of Fifths or Fourths shows relationships between pitch classes
+# TODO: Replace or empower with IntervalCycle (?)
+# https://en.wikipedia.org/wiki/Interval_cycle
 class HeadMusic::Circle
   def self.of_fifths
     get(7)
   end