Pittsburgh Concert Chorale Music Director Susan Medley takes through "Music of War and Peace" - a concert of music that highlights the trials of war and the uplifting transcendence of peace, at 7:30 p.m. Saturday, March 4, at Fox Chapel Presbyterian Church and 4 p.m. Sunday, March 5, at Ingomar United Methodist Church.  PCC’s concert features Richard Buchard’s “O vos omnes”, Jeffrey Van’s A Procession Around Me (a setting of four Walt Whitman Civil War Poems) and Franz Joseph Haydn’s Mass in Time  of War