Behind the scenes, Farrell has garnered attention for her insightful work as a stage director and vocal coach. She is the Artistic Director for Lyric Opera of Orange County, which was named Emerging Arts Organization of the Year for 2022 by Arts OC. In 2022 Farrell was also named a Women Leader in Orange County Arts, and an OC Visionary by the Los Angeles Times. Farrell has become a frequent judge and panelist for competitions, grant committees, and young artist training programs around the country. She has worked as a director at multiple opera and musical theatre programs around the Great Lakes area and for companies like Pacific Lyric Association and Opera Western Reserve.
When not focusing on opera, Farrell performs with the Pacific Chorale. Highlights from past concert engagements include Beethoven’s Ninth Symphony soprano soloist with Poway Symphony Orchestra, a performance of Strauss’ Vier Lieder with Peninsula Symphony Orchestra, Berlioz’s Les Nuits d’été with the Dana Symphony Orchestra, an appearance with the Miami Valley Symphony Orchestra, and the soprano soloist with the Centre Chorale for Mozart’s Requiem and Saint Saën’s Oratorio de Noël. Farrell is the winner of multiple awards throughout her career, completing her formal studies with an Artist Diploma from the Cleveland Institute of Music. Diana is currently a student of celebrated Wagnerian tenor, Jon Friedric West.