What is the difference between parody and farce?

What is the name of the song released by the artist "owl city" in 2009 as a hit single? (it was also one of the dankest memes of 2017)

What should i say so i can switch my instrument

This brooch contains a miniature picture of american statesman henry clay. likely owned by clay or his ancestors, this brooch is valued for what reason? a. scholastic value b. provenance c. cultural heritage d. market value pls hurry and you