O Come, Emanuel" as the basis for the "Adoration of the
 Magi" movement of another art-inspired wrok, the Three Botticelli Pictures.
Proper recordings of one piece by this composer use a pipe organ to play the "Saint Gregory the Great"
 section of his four-movement piece about fictional stained-glass religious scenes, Church Windows. He
 used the traditional Christmas carol "O Come, O Come, Emanuel" as the basis for the "Adoration of the
 Magi" movement of another art-inspired wrok, the Three Botticelli Pictures. His material was often
 performed or completed by his wife Elsa, as in his opera Lucrezia. His andante mosso depiction of the
 Valle Giulia is included in a work that also takes place at the Villa Medici, the Tritone, and the Trevi, and
 this composer of Ancient Airs and Dances also used a recorded nightingale call in another work set in the
 same city. For 10 points, name this Italian who composed The Fountains of Rome and The Pines of Rome.
Proper recordings of one piece by this composer use a pipe organ to play the "Saint Gregory the Great"
 section of his four-movement piece about fictional stained-glass religious scenes, Church Windows.
Ottorino {Respighi}