Cancionero de Upsala
The Cancionero de Upsala [sic], also known by the titles Cancionero del Duque de Calabria and Cancionero de Venecia, is a volume of mostly anonymous Spanish music printed in Venice in 1556. Its actual title is Villancicos de diversos Autores, a dos, y a tres, y a quatro, y a cinco bozes, agora nuevamente corregidos.