clef.rb in head_music-0.18.0

- old
+ new

@@ -1,5 +1,8 @@
+# frozen_string_literal: true
+
+# A clef assigns pitches to the lines and spaces of a staff.
 class HeadMusic::Clef
   include HeadMusic::NamedRudiment
 
   CLEFS = [
     { pitch: 'G4', line: 2, names: ['treble', 'G-clef'], modern: true },
@@ -14,11 +17,11 @@
     { pitch: 'C4', line: 2, names: ['mezzo-soprano'] },
     { pitch: 'C4', line: 3, names: ['alto', 'viola', 'counter-tenor', 'countertenor'], modern: true },
     { pitch: 'C4', line: 4, names: ['tenor'], modern: true },
     { pitch: 'C4', line: 5, names: ['baritone'] },
 
-    { pitch: nil, line: 3, names: ['neutral', 'percussion'] }
-  ]
+    { pitch: nil, line: 3, names: %w[neutral percussion] },
+  ].freeze
 
   def self.get(name)
     get_by_name(name)
   end
 