Jan Mombaer, Chiropsalterium (Handpsalter), from Rosetum exercitiorum spiritualium et sacrarum meditationum (Rosary of spiritual exercises and sacred meditations) (Zwolle, 1510), woodcut, 19.7 x 14.5 cm. Washington, D.C., Library of Congress, Music Division, ML171.M19 Case, n.p. [AaL2] (artwork in the public domain)