Each film, and particularly the first one, starts with an overture: a series of statements of the principal themes of the feature, which extended from the opening credits till after the individual title of the film. The prologue to the first film, for instance, features the History of the One Ring theme, Lothlórien theme, The Mordor accompaniments, Sauron's theme, the Servants of Sauron theme, the Fall of Men, Aragorn's theme and the Shire theme and variations and at some point was to feature the second-age Gondor theme and the Power of Mordor as well. The main Lord of the Rings theme appears on the main title, while the main theme of each individual episode appears on the second title. Shore used the first film to introduce the principal themes, the second film to add more themes and develop the existing ones, and the third film to create conflict and crossovers between the existing themes and bring them to a resolution, creating in the process new themes for the Fourth Age. Also across the three scores, Shore changed the soundscape: incorporating more aleatoric devices and contrapuntal writing in The Two Towers, compared to The Fellowship of the Ring, and more extrovert writing for Return of the King.