will not therefore choose him as consort, but will not deprive him of the throne, takes the solemn and irrevocable oath as Virgin of the Sun. Thamos enters, and they discover, to their sorrow, their mutual love. Sethos, entering, enlightens Thamos as to the treachery of Pheron, without disclosing the parentage of Sais. Pheron, disturbed by the report that Menes is still living, comes to take council of Sethos, and adheres to his treacherous design. In solemn assembly Thamos is about to be declared king, when Mirza reveals the fact that Sais is the lost Tharsis, and heiress to the throne. Thamos is the first to offer her his homage. When she is constrained to choose between Thamos and Pheron she declares herself bound by her oath, and announces Thamos as the possessor of the throne. Then Pheron calls his followers to arms, but Sethos steps forward and discloses himself as Menes; whereupon all fall at his feet in joyful emotion. Pheron is disarmed and led off; Mirza stabs herself; Menes, as father and ruler, releases Sais from her oath, unites her with Thamos, and places the pair on the throne. A message arrives that Pheron has been struck with lightning by Divine judgment, and the piece ends." To this drama Mozart composed the incidental music in 1779 and 1780 at Salzburg, where it was produced under Böhm and Shickaneder's direction. The play did not keep the stage long. Mozart refers to this circumstance in a letter to his father, written Feb. 15, 1783:-- "I regret much not being able to make use of the music for 'Thamos,' for not having pleased here, it is included among the tabooed pieces, no longer to be performed. For the sake of the music alone it might possibly be given again, but it is not likely. It is really a pity." The music consists of five entr'actes and three choruses constructed in a large and majestic style and specially adapted to ceremonial performance. The first is a responsive chorus of maidens and priests ("Before thy Light, Sun-god, thy Foe the Darkness takes Wing") sung in the temple of the sun at Heliopolis. The second ("Godhead, throned in Power eternal") is also sung in the temple before Thamos' coronation, at the beginning of the fifth act, and contains short snatches of solos for a priest and maiden, leading to a close in full harmony for the voices, and an instrumental finale of soft music during which the priest offers sacrifice upon the altar. The third opens with a majestic bass solo for the high priest ("Ye Children of Dust, come, with Trembling, adore ye") and closes with a stately strain for all the voices ("We Children of Dust in our Reverence tremble"). Although the play was shelved, the music was not lost. Mozart subsequently set the choruses to Latin and German words, and they were adapted as hymns and motets for church use. They are now familiar to musicians as "Splendente te Deus," "Deus tibi Laus et Honor," and "Ne Pulvis et Cinis." Nohl says of them:--