Alte Zeiten Potpourri" Arr: Carl Frei. At the time of recording (1977)  the organ was owned by Rudolf Barth & Son of Bonn, Germany, the 2 outer wings of the organ were extended by the Barth family in 1976. They have a 5 loop transportable roller coaster 900 Tons, an amazing machine to say the least!  http://olympialooping.com/