the first complete english metrical psalter and the first to include musical notation was "the psalter of dauid newely translated into englysh metre in such sort that it maye the more decently, and wyth more delyte of the mynde, be reade and songe of al men". printed in 1549, it was the work of robert crowley and was printed by him, richard grafton and/or stephen mierdman. crowley's psalter is a rare example of two-color printing (red and black on the first four leaves) in this era, which makes it visually resemble medieval manuscript psalters. (christopher tye and francis seager later included musical notation in their psalters, and the sternhold and hopkins psalter eventually incorporated a basic tune with the anglo-genevan edition of 1556. john day's "the whole book of psalmes" (1562) contained sixty-five psalm tunes.) crowley also included a calendar for calculating feast days as in the book of common prayer, to which crowley's psalter appears to be intended as a supplement.