gistfile1.txt

class Song
  def initialize(title, length_in_seconds, author)
    @title, @length_in_seconds, @author = title, length_in_seconds, author
  end

  # real ruby
  def length_in_minutes
    @length_in_seconds.to_f / 60
  end

  def to_s
    "#{@title} (#{@author})"
  end

  # fake ruby
  def length_in_minutes = @length_in_seconds.to_f / 60
  def to_s = "#{@title} (#{@author})"
end

isn't #define_method sort of like that?

define_method(:length_in_minutes) { @length_in_seconds.to_f / 60 }
# faker ruby
def(:length_in_minutes) { @length_in_seconds.to_f / 60 }