The enigmatic canons of Juan del Vado

A page from a musical score book of enigmatic canons by composer Juan del Vado (1626 - 1691), completed between 1677 and 1679 and given as a gift to Juan José de Austria, the brother of Charles II, for usage in his royal chapel. See/read more here: https://www.emblematica.com/blog/2010/02/enigmas-resueltos.html