At the royal court in 17th-century England, musicians were expected to perform at high days and holidays: the king’s birthday, New Year, and when the monarch returned to London from his summer break. Purcell adds his usual musical panache and genius for word setting to such miniature jewels as the 15-minute Welcome, Viceregent of the Mighty King and Fly, Bold Rebellion, a seven-movement ode celebrating the king’s return to the Palace of Whitehall after the quelling of a “disloyal crowd.” Harry Christophers assembles musical forces in line with Purcell’s own, and all perform with flair and elegance.