Clavichord: A keyboard instrument that produces sound by striking metal tangents against strings. It is quieter and more expressive than the harpsichord, and was popular in the 17th and 18th centuries.
Virginal: A small, portable harpsichord that was popular in the 16th and 17th centuries. It is similar to the harpsichord, but has a single manual and a smaller soundboard.
Spinet: A small, upright harpsichord that was popular in the 17th and 18th centuries. It is similar to the virginal, but has a more elaborate case and a larger soundboard.
Muselaar: A type of harpsichord that was invented in the 18th century by Christian Gottlieb Müthel. It is similar to the harpsichord, but has a more complex mechanism that allows for a wider range of expression.
Pianoforte: A keyboard instrument that produces sound by striking hammers against strings. It was invented in the 18th century, and quickly gained popularity over the harpsichord due to its louder sound and greater expressive capabilities.