December 10, 2018. Musical traditions abound during the holidays. In Vienna, Austria, as New Year’s approaches, waltzes, marches, and polkas of the Strauss family begin to fill the air. One might think the Vienna Philharmonic has a lock on this music, with its high-profile New Year’s Day concert broadcast around the world, an annual tradition dating back to the dark days of World War II. But when it comes to regular performances of the Strauss family’s effervescent, carefree music, the Vienna Boys Choir has the Philharmonic beat by a couple decades.