Question: When was the building that has an American trumpeter whose nickname is Satchmo, Satch or Pops as a featured performer built?
Sentence (from "A Trumpeter's Lullaby"): The two and a half minute piece was premiered on May 9, 1950, by the Boston Pops Orchestra with Arthur Fiedler conducting and French-born American Roger Voisin as trumpet soloist.
Relevant evidence: No