Company, Houghton Mifflin Harcourt Publishing. “The American Heritage Dictionary entry: standard”. ahdictionary.com. 2020年7月27日閲覧。 “Music - A composition that is continually used in repertoires: a pianist who knew dozens of Broadway standards.”
Company, Houghton Mifflin Harcourt Publishing. “The American Heritage Dictionary entry: canon”. ahdictionary.com. 2020年7月27日閲覧。 “"canon" - The works of a writer that have been accepted as authentic. an example:the entire Shakespeare canon.”
