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Recognized for his "enviable control of the clarinet" (The Boston Musical Intelligencer), John Diodati is principal clarinetist of the Opera Philadelphia Orchestra. The Boston native has also performed as a guest in subscription concerts with the Atlanta Symphony Orchestra, Houston Symphony, Philadelphia Orchestra, The Florida Orchestra, and San Antonio Symphony. In 2017, John was invited to be a New York Philharmonic Global Academy Fellow and performed music by Richard Strauss with the Philharmonic. Additionally, he served as guest principal clarinetist with Houston Grand Opera for performances of Puccini's La Bohème in 2019.

A Tanglewood Music Center Fellow in 2012 and 2013, John was the recipient of the 2013 Gino B. Cioffi Memorial Prize for Outstanding Woodwind Performance. At Tanglewood, he worked with many celebrated conductors, including Rafael Frühbeck de Burgos, Stéphane Denève, Christoph von Dohnányi, Charles Dutoit, Ludovic Morlot, Andris Nelsons, Esa-Pekka Salonen, and Michael Tilson Thomas. John also spent a summer as a fellow at the Music Academy of the West where he performed chamber music with members of the Chicago and San Francisco Symphonies during the 2014 season. 



John holds degrees from New England Conservatory (NEC) and Rice University's Shepherd School of Music,  where he studied with Thomas Martin and Richie Hawley. While at NEC, John frequently appeared as a recitalist in Jordan Hall, most notably as a member of the NEC Contemporary Ensemble. Under the direction of renowned composer and educator, John Heiss, projects with the Contemporary Ensemble involved frequent collaborations with leading 20th century composers such as Gunther Schuller and John Harbison.

"Diodati demonstrated an enviable control of the clarinet across all registers and dynamic ranges..."

                      - Boston Musical Intelligencer 

"The long-held note on the solo clarinet (John Diodati) that led into the quiet, major-key ending of the first movement was hauntingly beautiful." 

                      - Boston Musical Intelligencer