Pedro R. Díaz joined The Metropolitan Opera in 2005 and has performed as Solo English Horn in hundreds of productions. As a sought after teacher, Díaz has lectured extensively at the top music conservatories including The Juilliard School, The Manhattan  School of Music, The Eastman School of Music,The Hartt Music School, and Duquesne University. His international appearances include masterclasses in Panama, Italy, Mexico, Canada, Costa Rica, Puerto Rico, Leipzig, Berlin, and Italy.   A native of Puerto Rico, he received his early musical training in the Escuela Libre de Musica, an esteemed public school for the performing arts. He has performed as a guest artist with The Chicago Symphony and The New York Philharmonic, among others. On a recent research trip to Italy, Díaz was able to track down the original solo and orchestral parts for the Donizetti Concertino for English horn (1816), at the Museo Internazionale e Biblioteca della Musica di Bologna. For the first time in two hundred years, these materials have been published in a critical edition by Theodor Presser, along with a new album release performance by Díaz, featuring Riccardo Frizza and musicians of The Metropolitan Opera Orchestra. His playing has been hailed by critics as evocative, eloquent and expressive and is considered one of the pre-eminent players of his generation.