He composed a work in which a solo trumpet asks the "Perennial Question of Existence," and another that contains the movement "Putnam's Camp."  
This man's second symphony uses the folk song "Long, Long Ago" as one theme, and he left an unfinished Universe Symphony.  A tremolando underlies the second movement of his fourth symphony, which draws from "The Celestial Railroad," and he synthesized jazz, rag, "Hello My Baby," and Sousa's "Washington Post" in a piece meant to evoke the nightlife of New York. He composed a work in which a solo trumpet asks the "Perennial Question of Existence," and another that contains the movement "Putnam's Camp."  Central Park in the Dark and The Unanswered Question are by, for 10 points, this American composer of Three Places in New England.
This man's second symphony uses the folk song "Long, Long Ago" as one theme, and he left an unfinished Universe Symphony.  
Charles Ives