 Louis Bourgeois, also a refugee, lived and taught music in Geneva for sixteen years and Calvin took the opportunity to add his hymns, the most famous being the Old Hundredth.In the same year of 1542, Calvin published "Catéchisme de l'Eglise de Genève" (Catechism of the Church of Geneva), which was inspired by Bucer's "Kurze Schrifftliche Erklärung" of 1534.Calvin had written an earlier catechism during his first stay in Geneva which was largely based on Martin Luther's Large Catechism.