Shakespeare's stygian supernatural tragedy, replete with witches, paradoxical prophesies, grisly murders and ghosts, was embraced enthusiastically by Verdi. He made the following remark: "This tragedy is one of the greatest creations of man." His enthusiasm for the play and his own adaptation never waned. The original Italian four-act 1847 score was heavily revised in 1865, the latter version used a libretto in French and was in five acts. This 1865 revision really has the most compelling music for Lady Macbeth and the chorus, the latter carrying much of the weight of the opera. In fact, the choruses throughout Macbeth show Verdi at his most innovative and are on the par with those in his Requiem.  Tonight's performance followed the revised version, sung in Italian, with the laudatory reinstatement of “Mal per me che m'affidai,” Macbeth's stunning final aria from the original.