El Capitan is a comic opera with music by John Philip Sousa and a libretto by Charles Klein. Set in 17th-century Peru, it tells the story of a Spanish officer, Don Medigua, who is tasked with guarding a valuable treasure from pirates. However, when he and his men are captured by the pirates, they must use their wits and resourcefulness to escape and recover the treasure. This work has been selected by scholars as being culturally important,...