MusicMark RudioJune 17, 2019Nathalie Stutzmann, Sue Heinemann, National Symphony Orchestra, Mozart: Sinfonia Concertante, Mozart: “Haffner” Symphony Stutzmann Kicks off NSO's Mozart Festival Once again, the Kennedy Center Concert Hall’s acoustics prove to be a challenge … MusicMark RudioJune 17, 2019Nathalie Stutzmann, Sue Heinemann, National Symphony Orchestra, Mozart: Sinfonia Concertante, Mozart: “Haffner” Symphony