Jordi Savall has brought us yet another treasure on his own Alia Vox label, this time a mixed bag of music by Reformation Era composers and a handful of slightly earlier works. It’s all taken from a concert program Savall gave last year under the aegis of “greatest hits of the court of Charles V”. The composers presented are mostly court musicians for that Holy Roman Emperor, but Josquin and Heinrich Isaac also are included, the latter as a nod to Charles’ grandfather, Maximilian I, who was responsible for getting Charles the crown. Savall combines his first-rate instrumental ensemble, updated to Hespèrion XXI, with his own vocal group, La Capella Reial de Catalunya. The results are captivating. Savall’s musicians are tops in the field, and their collective talents, constantly on display in this varied program, are simply a joy to hear.