In this small square piano, made between the 18th and the 19th century, the hammer is directly connected to the key from the side, as it was typical for Italian-made instruments—particularly those from Veneto.
As for the instrument’s action, it is a Prellmechanik without escapement, and its sound, delicate and cantante, is produced by thin hammers covered in leather. The volume is comparable—though slightly higher—to the one of a good clavichord, an instrument with which the square piano has many structural similarities.