Founding Director | Assistant Director | Band Staff
Dr. Gabe Petrocelli is a graduate of the Hartt Conservatory at the University of Hartford.
He earned a Master's Degree in Music Composition and Theory at California University, Los Angeles and a doctoral degree
at the University of La Verne. Dr. Petrocelli studied music composition with Alvin Epstein and Byuong
Yong Kim; conducting with Phillip Treggor and Dr. Vito Susca; Jazz Studies and Composition with Alexander Lepak,
Lenny La Croix, and Buddy Collette; and film composition with Jeff McDonald.
In 2004, Dr. Petrocelli composed the concert march "The Bandmaster" for the commemoration ceremony
to honor Jack Mercer and the naming of Mercer Music Hall on the campus of Chaffey High School. In 2006,
Dr. Petrocelli's "St. Mark's Passion" for Chorus and Organ was premiered at the Assisi Musical Festival
in Assisi, Italy. In 2010, he composed a work entitled "Centennial" to commemorate the 100-Year
Anniversary of the Chaffey Joint Union High School District. Dr. Petrocelli has written nearly 150
arrangements for the Ontario Chaffey Community Show Band and numerous others for high school bands and orchestras
throughout Southern California. In 2011, he composed the film score for a documentary movie entitled
"Mayberry Days." He has composed music for NBC-TV and written musical arrangements for Hanson
For the past eight years, Dr. Petrocelli has been working as the associate conductor and arranger for the
Ontario Chaffey Community Show Band. Recently, his compositions have been premiered by the Show Band and
concert artists that include Maria-Perez Goodman performing "Waltz Fantasia" and "Los Canciones Para
Piano," Jason Goodman performing a percussion concerto entitled "Divertimento Espanol," The Windsong
Chorale, and Inland Valley String Orchestra that performed an original suite for string orchestra entitled
"An American Biography." Dr. Petrocelli has written numerous songs and arrangements for many
ensembles and soloists in the New York City and Los Angeles areas that include artists such as Andrea Calderwood,
Marilyn Sherwood, Jim Perkins, Sheila Ruff, Jim Bonner, Brian Detwiler, Angie La Duke, Gabe La Rosa, Leon McCrary,
Chris McAleer, Aimee Nolte, Taber Shy, and Rock and Roll Hall-of-Famer Ron Ellington Shy.
Beginning the 2013-2014 concert season, Dr. Petrocelli will step up to the podium as the new director of the
Ontario Chaffey Community Show Band, taking over from the legendary founder and director Maestro Jack Mercer.