lib/rb-music/note_set.rb in rb-music-0.0.4 vs lib/rb-music/note_set.rb in rb-music-0.0.5

@@ -36,18 +36,23 @@
     end
 
     def <<(other)
       @notes << other
     end
+    alias_method :push, :<<
 
     def map(&block)
       @notes.map(&block)
     end
 
     def ==(other)
       @notes == other.notes
     end
     alias_method :eql?, :==
+
+    def size
+      @notes.size
+    end
 
     def add(that)
       NoteSet.new(@notes.map { |note| note.add(that) })
     end