Sub- Super Erfurt: An instrument becomes flexible

[Translate to 汉语 (Chinese):] The organ in Erfurt with its mechanical trackers and disposition from the early 1970s was reorganized and expanded. For this purpose, a modern traction-system with a solo-windchest and single-tone control was integrated. A Traversflöte, a Salicional and a reed can be individually controlled in each manual and the new stops can now be played individually one octave lower or higher.

In addition, the organ has received a Sesquialter for the second manual. The mechanical trackers and stop-action were supplemented by an electrical tracture that intervenes sensitively in the existing system.