Cordillera Central (Luzon) Sierra Madre Mountains, the longest mountain range in the country, through the Caraballo Mountains in Nueva Vizcaya province. During Spanish colonial period, the whole range was called "Nueva Provincia", (New Province). The Cordillera Central is the highest mountain range in the Philippines. It comprises about 1/6 of the whole Luzon island with a total area of . The highest mountain in the range, Mount Pulag, is also the highest mountain on Luzon Island at . It is officially the third highest mountain in the country after Mount Dulang-dulang and Mount Apo on Mindanao Island, the second largest island of the
Apo Hsu in double bass performance as well as an Artist Diploma in Conducting with conductor Charles Bruck. She attended the Pierre Monteux Domaine School in Maine for Advanced Conductors, The Conductor’s Institute in South Carolina with Harold Farberman, and the Aspen Music Festival in Colorado with Murry Sidlin. Apo Hsu Apo Hsu (Apo Ching-Hsin Hsu) () is a conductor born in Taiwan and resident of both Taiwan and the United States. Hsu served as music director of the National Taiwan Normal University Symphony Orchestra and the Springfield Symphony Orchestra in Springfield, Missouri. Her past appointments include serving as artistic director of