sentences:  His regional opera, "Little Jo", written in 1947–48, best shows how Robb drew from Hispanic folk music in his compositions.Another ambitious work, "Joy Comes to Deadhorse", also illustrates Robb's fascination with his adopted home.The musical was set on two adjoining ranches in the Southwest, and centers around an Anglo boy and an Hispanic girl who fall in love with each other, despite the machinations to the contrary of their fathers.