The spectacular contemporary stained-glass windows in the oldest church in Cologne, with beginnings in the 4th century, provide the themes for the improvisations and classic organ pieces played by Jürgen von Moock on the new Weimbs organ (2001) in this magnificent, restored edifice. BACH: Passacaglia & Fugue in c BWV 662 BACH: Der Tag, der ist so freudenreich BRUHNS: Prelude & Fugue in e FRANCK: Choral No. 3 in a COUPERIN: Dialogue sur les Grands Jeux ALAIN: Litanies DUPRÉ: Lamento VON MOOCK: Improvisations on Te Deum laudamus; Veni Creator Spiritus; Nun sei uns willkommen, Herre Christ; Christe, du Lamm Gottes; Dies irae