For more that 200 years this beautiful instrument belonged to the family of Count Raben (later Raben-Levetzau). The first owner was Sophie Magdalene v. Qualen (1749-1844), who in 1774 married Count Frederik Sophus Raben (1784-1828) of Beldringe Castle. The family brought the instrument from Beldringe Castle to Aalholm Castle in 1879, when their son Count Carl Vilhelm Raben-Levetzau (1789-1870) inherited Aalholm Castle. In connection with the opening of the Museum of Music in Copenhagen in 1898 the instrument was deposited by Count Frederik Raben-Levetzau (1850-1933) at the museum, and later in 1931 he sold it to the Museum of Music. 

The harpsichord by Hass is one of the finest instrumentet of the museum, and it was built by the famous Hass workshop in Hamburg. It has four registres (8+8+8+4 foot), the keyboards of the two manuals are covered by tortoise shell and ivory. On the outside the instrument is covered by Chinese ornamentations in black lacquer with gold. On the inside of the lid there are musical scenes from a baroque park in a red frame with golden ornamentation.

Large harpsichord after Hieronymus Hass +16
copy by Hubbard harpsichords