Listen to Magnificat: Fecit potentiam online. Magnificat: Fecit potentiam is an English language song and is sung by Tom Winpenny, City Of Birmingham Symphony Orchestra, Stephen Cleobury, King's College Choir, Cambridge and Jacqueline Hartley. Magnificat: Fecit potentiam, from the album John Rutter: The Platinum Collection, was released in the year 2007. The duration of the song is 3:54. Download English songs online from JioSaavn.