Stock Photo: Gradual and Kyrial of two Monks sing in front of a Lectern, by Unknown, 15th Century, illuminated manuscript. Italy, Tuscany, Siena, Osservanza Basilica. Whole artwork. Illuminated page book choral liturgical chant notes music text plant shoots panel illustration small figures monks clergymen tonsure chant score lectern book-rest book prayer blue red green black.