His music has been performed by the Los Angeles Philharmonic, the American Composers Orchestra, the USC Symphony Orchestra, the Sonus Quartet, the Boston Metro Opera, the Vancouver Chamber Choir, the Hollywood Master Chorale, and musicians from the Juilliard School, the Thornton School of Music, and the University of Michigan at Ann Harbor. He participated in the 2013 Underwood New Music Readings for his full orchestral work, "Maelstrom" (2012), which also garnered an ‘Alternate’ designation from the prestigious Minnesota Orchestra Composer Institute (2013). "Maelstrom" received its world premiere by the USC Symphony in February 2013 under the baton of Donald Crockett. Mr. Haddad’s earlier orchestral work, "Heart of the Hall" (2009), was premiered by the Los Angeles Philharmonic at the world-renowned Walt Disney Concert Hall.