Cutting from a gradual
A cutting from a choir gradual, a liturgical manuscript for church singing, painted by Taddeo Crivelli around 1460 and held by the J. Paul Getty Museum. The picture shows the Trinity: an enthroned God the Father in blue robes holding a cross on which the crucified Christ hangs, with a dove above and a red oval field ringed by winged heads and gold leaf. A designer might take its saturated ultramarine and red against gold, and the dense rhythm of small painted heads.
