The birth of Hans Ruckers around 1550 was also the birth of a famous dynasty of harpsichord-makers. He introduced a completely new concept in harpsichord making, simple and classic in its beauty and perfection.
In the next 100 years his sons Johannes and Andreas, his grandson Andreas, his cousin Johannes Couchet and his son, all continued to work on this concept. Later, their instruments were so admired in France, that they were adapted to the demands of the time. A second eight foot was added and the original transposing keyboards were aligned. Later the compass was enlarged.
This process was called “Ravalement”. Doing this radically changed the sound of these instruments. They started to sound more polished, which makes them more apt to be used for a wide range of styles of music.