Petrou has served as a member of the Kennedy Center Community Advisory Board, the Choral Arts Society of Washington Board and the Washington Men’s Camerata Advisory Board. He is also a baritone singer with The Choral Arts Society of Washington. Petrou participated in several recordings, including: London Symphony Orchestra recording of Mahler “Symphony No. 8,” Valery Gergiev, conductor.lso.co.uk/3308/Mahler-Symphony.../-/LSO0669_Digital_Booklet.pdf “Make Me Drunk with Your Kisses,” by Alexander Knaifel, composer; Mstislav Rostropovich, cellist; Norman Scribner, conductor
