You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: MUSICALS IN OTHER WORDS 
Clue: "P.T."
"barnum"

Category: QUOTES 
Clue: 19th C. German chancellor who spoke of "Blut und Eisen", meaning "blood & iron"
otto von bismarck

Category: AFRICAN AMERICANS 
Clue: "Goodbye Pork Pie Hat" is a famous work by this jazz bassist & bandleader

charlie mingus