It is unnecessary to inform the reader of the nature of a poem familiar the world over. The overture is written for strings and two oboes. Throughout the work the orchestration is thin, bassoons and horns being the only instruments added to those named above; but in 1790 Mozart amplified the accompaniments,--an improvement which he also made for the score of "Acis and Galatea." The great solos of the composition are the furious aria, "'Revenge, Revenge!' Timotheus cries," and the descriptive recitative, "Give the Vengeance due to the valiant Crew," in which Handel employs his imitative powers with consummate effect. Clouet, in his "Chants Classiques," says of the passage "And the king seized a flambeau with zeal to destroy:-- "He paints Alexander issuing forth in the midst of an orgie, arming himself with a torch, and followed by his generals, running to set fire to Persepolis. While the accompaniment sparkles with the confused and unequal glare of the torches, the song expresses truthfully the precipitation and the tumult of the crowd, the rolling of the flames, and the living splendor of a conflagration." The choruses of the work are equally strong, and some of them are among the best Handel ever wrote, particularly, "He sang Darius great and good," "Break his Bands of Sleep asunder," "Let old Timotheus yield the Prize," and "The many rend the Skies with loud Applause." They are as genuine inspirations as the best choruses of the "Messiah" or of "Israel in Egypt." In 1739 Handel also set to music Dryden's shorter "Ode for St. Cecilia's Day," beginning, "From Harmony, from heavenly Harmony This universal frame began," the music for which had been originally composed in 1687 by Giovanni Baptista Draghi, an Italian, who was music-master to Queen Anne and Queen Mary, and at that time was organist to Catharine of Braganza, widow of Charles II. Handel's setting was first performed on the anniversary of the saint's festival, Nov. 22, 1739. The programme announced: "Lincoln's Inn Fields. At the Theatre Royal in Lincoln's Inn Fields, Thursday next, November 22 (being St. Cecilia's Day), will be performed an Ode of Mr. Dryden's, with two new Concertos for several instruments, which will be preceded by Alexander's Feast and a Concerto on the organ." Though one of the shortest of his vocal works, it contains some magnificent choruses. [26] Cecilia, a pupil of Geminiani, and afterwards wife of Dr. Arne. L'Allegro.