It is February 28, 1903, and 12 musicians from the Imperial Household Orchestra are seated in front of a gramophone horn in a Tokyo hotel room. American recording engineer Fred Gaisberg carefully lowers the needle onto a spinning blank disc and the session begins. The fragile melody of a bamboo flute breaks the silence, followed by the slow beat of the conductor’s drum. As the song unfolds, Gaisberg’s chikuonki, or “sound storing machine,” records the ceremonial sound of gagaku. The oldest continuously performed orchestral music in the world, gagaku had…