Wittry studied conducting with Daniel Lewis, and worked closely with Michael Tilson Thomas, Maxwell Davies, Gustav Meier, Leonid Korchmar, and Jorge Mester.

[1] From 2018-2023, Diane Wittry served as the music director and conductor of the Garden State Philharmonic, a professional orchestra composed of New York City-based musicians that performed concert at the Jersey Shore.

[3] In addition to conducting, Wittry has composed several original compositions, including Mist, Lamentoso, After The Rain, Concerto for Homemade Instruments, Ode to Joy Fanfare, Leaves, "Summer Sun" and Holiday Greetings.

[5] (Oxford University Press) Wittry has taught conducting workshops based on her book Beyond the Baton in Connecticut, Ukraine, and Bulgaria.

She has taught doctoral and masters level orchestral conducting students at Mason Gross School of the Arts at Rutgers University in New Brunswick, New Jersey.

[7] In 2011, Wittry was named the artistic director for the United States for the international cultural exchange program for classical musicians at the Sarajevo Philharmonic Orchestra and the Bosnian-Herzegovinian American Academy for Arts and Sciences in Chicago.

Her book Beyond the Baton, published by Oxford University Press about artistic leadership for young conductors and music director, has also been released in paperback.

It is the focus of a yearly International Conducting Workshop in Norwalk, Connecticut, which helps emerging conductors put to practical use the elements in the book.