A striking aspect of the 18th-century French tradition was its near-obsession with the Ruckers harpsichords. In a process called "grand ravalement", many of the surviving Ruckers instruments were disassembled and reassembled, with new soundboard material and case construction adding extra notes to their range. A number of builders, Taskin included, constructed (often very fine) new instruments and passed them off as Ruckers restorations. A more basic process was the so-called "petit ravalement", in which the keyboards and string sets, but not the case, were modified.