Overview: Broadcast of Prom 49: Bach’s St John Passion In one of a series of Proms performances marking the 500th anniversary of the Protestant Reformation, John Butt directs his Dunedin Consort in a complete performance of Bach's powerful St John Passion, with Nicolas Mulroy as the Evangelist and Matthew Brook as Jesus. Reflecting the church setting for which it was written, the performance includes congregational singing from the Proms audience.