The discussion concentrates on Hector Berlioz's second opera, Les Troyens, which is Berlioz's final large work written between 1855-1858. The study demonstrates how the opera is unified through its drama and music. Les Troyens, a five-act tragic opera that is based on Virgil's Aeneid, is perhaps one of Berlioz's least known major works. The orchestral score had not been published in its entirety until 1969, when a two-volume edition of the opera was published by Bärenreiter in the New Edition of the Complete Works of Hector BerIioz. The first complete recording of Les Troyens, conducted by Colin Davis, was released by Philips records in 1972. These two sources have made an analysis of this important work of the nineteenth century possible. The study includes a survey of the dramatic influences of Virgil and his Aeneid, and the poetry of Shakespeare, in addition to the musical influences of Gluck's operas, the compositions of Lesueur, the symphonies of Beethoven, Weber's opera, Der Freischütz, and the French grand opera style, which all contributed to the opera.