Images: Virgil Thomson, NYPL; Oliver Smith, Paul Bowles and Jane Bowles, 1947: Mutual Art; Carlos Surinach: NYPL; Colin McPhee: Photograph by Constantin Joffe, Getty Images; Leopold Stokowski: Wikipedia; Lou Harrison: NYPL; Eric Blom: Wikipedia; Elliott and Helen Carter: Twitter; John Cage: WNYC; Hovhaness and Ajemians; Margot Rebeil: Brooklyn Library; Errol and Theo Flynn: NLA.