Devastation and disbelief was our response when we watched the Gothic cathedral Notre-Dame de Paris ablaze, shorn of its collapsed spire and hungry flames consuming the roof and truss. Because I am wired a certain way, my immediate thoughts went to Notre-Dame’s 1868 organ, a masterpiece of romantic organ-building and, alongside his instrument at Paris’s Saint-Sulpice, the crowning glory of its builder Aristide Cavaillé-Coll’s career. Almost miraculously, the 8,000-plus pipe instrument has survived, damaged neither by fire nor water.