Louis Couperin (c. 1626-1661) was an outstanding member of the seventeenth-century clavecin school and an important link in the Couperin dynasty. His works for the harpsichord, or clavecin, have been neglected. This is due primarily to the fact that there are relatively few of his works, in comparison with those of his nephew, Franois Couperin Le Grand, who greatly overshadows him. Louis wrote no treatise on how his works are to be played, and there are few accounts of him, or his works, that are written in English. There is no biography of Louis Couperin. A more detailed study should be made of his music and its place in the French clavecin literature. Before examiinig the music itself, however, it is necessary to trace the origins and development of the clavecin school and its style.