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Leon Spierer Violin - Argentina Former Concertmaster - Berlin Philharmonic |

Markus Däunert Violin - Germany Former Concertmaster - Mahler Chamber Orchestra |

José Aurelio Castillo Violin - Costa Rica Concertmaster - National Symphony Orchestra of Costa Rica |

Mary Ann Mumm Violin - United States Metropolitan Opera Orchestra |
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Craig Mumm Viola - United States Principal - Metropolitan Opera Orchestra |

Ilmari Hopkins Cello - Finland Co-Principal - Stavanger Symphony Orchestra |

Timothy Cobb Double Bass - United States Principal - Metropolitan Opera Orchestra |

Daniel Krekeler Double Bass - United States Metropolitan Opera Orchestra |
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Leone Buyse Flute - United States Former Principal Boston Symphony |

Michael Webster Clarinet - United States Former Principal - Rochester Philharmonic |

Rob Weir Bassoon - Canada Co-Principal - San Francisco Symphony |

Javier Gandara French Horn - Puerto Rico Metropolitan Opera Orchestra |
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Alex Klein Oboe - Brazil Former Principal - Chicago Orchestra |

John Ferrillo Oboe - United States Principal - Boston Symphony Orchestra |

Pedro Diaz English Horn - Puerto Rico Principal - Metropolitan Opera Orchestra |

James Desano Trombone - United States Principal - Cleveland Orchestra |
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Paul Merkelo Trumpet - Canada Principal - Orchestre Symphonique de Montréal |

Mauro Maur Trumpet - Italy Principal - Rome Opera House Orchestra |

Fernando Meza Percussion - Costa Rica University of Minnesota - Director of Percussion Studies |

Judy Loman Harp - Canada Principal - Toronto Symphony Orchestra |
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Ricardo Castro Piano - Brazil Music Director - Bahia Symphony / NEOJIBA |

Gerardo Vila Piano - Argentina Haute Ecole de Musique de Genève |

Francoise de Clossey Chamber Music Coach - Italy & Canada
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Sir Paul McCartney United Kingdom 2005 Composition World Premier
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Marlos Nobre Brazil 2008 Composer-in-Residence |

John Estacio Canada 2009 Composer-in-Residence |
Philip Glass United States 2010 Composer-in-Residence |
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