Composing Sacred Music: A New Generation. For almost two thousand years, gifted musicians have composed music for use in church. This event will showcase the work of four of Edinburghs newest young composers " Alexander Macnamee, Carlo Massimo, Viktor Seifert and Lucy Whiteside. A selection of their recent compositions in sacred music will be presented in this historic royal church by a special recruited professional choir, under the direction of Calum Robertson, director of Edinburgh University Singers.