received the income of the chapel's trust fund. Until 1802, the cantor was both a teacher at the school and responsible for the singing of the choir and the congregation. The organist was responsible for the organ music and other instrumental music; he also had administrative and accounting responsibilities and was responsible for the upkeep of the building. Main organ St. Mary's is known to have had an organ in the 14th century, since the occupation "organist" is mentioned in a will from 1377. The old great organ was built in 1516–1518 under the direction of Martin Flor on the west wall as a replacement for the great organ of 1396. It had 32 stops, 2 manuals and a pedalboard. This organ, "in all probability the first and only Gothic organ with a thirty-two-foot principal (deepest pipe, 11 metres long) in the western world of the time", was repeatedly expanded and rebuilt over the centuries. For instance, the organist and organ-builder Barthold Hering (who died in 1555) carried out a number of repairs and additions; in 1560/1561 Jacob Scherer added a chest division with a third manual. From 1637 to 1641, Friederich Stellwagen carried out a number of modifications. added three registers in 1704. In 1733, Konrad Büntung exchanged four registers, changed the arrangement of the manuals and added couplers. In 1758, his son, added a small swell division with three voices, the action being controllable from the breast division manual. By the beginning of the 19th century the organ had 3 manuals and a pedalboard, 57 registers and 4,684 pipes. In 1851, however, a completely new organ was installed – built by Johann Friedrich Schulze, in the spirit of the time, with four manuals, a pedalboard, and 80 voices, behind the historic organ case by Benedikt Dreyer, which was restored and added to by Carl Julius Milde. This great organ was destroyed in 1942 and was replaced in 1968 by what was then the largest mechanical-action organ in the world. It was built by Kemper & Son. It has 5 manuals and a pedalboard, 100 stops and 8,512 pipes; the longest are , the smallest is the size of a cigarette. The tracker action operates electrically and has free combinations; the stop tableau is duplicated. Danse macabre organ (choir organ) The Dance macabre organ () was older than the old great organ. It was installed in 1477 on the