This week's programme looks at two recent developments which help people understand more about the Christian faith. We hear about a Welsh Christian 'app' which has resources for believers, as well as a version of the Bible with simple 'guidelines' to explain meaning and message. Choirs Aelwyd y Waun Ddyfal and Bechgyn Bro Taf will sing at St Germans Church in Cardiff and Mary-Jean O'Doherty will also perform.