Listen to Missa brevis in G KV49: Credo online. Missa brevis in G KV49: Credo is an English language song and is sung by Peter Neumann/Kölner Kammerchor/Collegium Cartusianum Köln/Franz-Josef Selig. Missa brevis in G KV49: Credo, from the album Mozart: Sämtliche Messen / Complete Masses, was released in the year 2011. The duration of the song is 7:37. Download English songs online from JioSaavn.