Pageset

Side movement is a term from the theory of musical forms and represents the second main part of an exposition in sonata form. In the recapitulation it is transposed and, if necessary, repeated in various ways.

As a rule of a classical sonata (to which there are many exceptions) the following can be said about the subordinate movement:

• In front of him there is a transition from the main movement , which prepares for the key of the side movement in a modulatory manner.
• If the sonata is in major, the subordinate movement is in the dominant key . If the sonata is in a minor key, the side movement is in the parallel major key .
• At the beginning of the page movement there is a separate (often lyrical) theme that contrasts with the main theme, usually short as “2. Subject ”.
• The side sentence often ends with a “ final group ” with a different character . In the sonata form that has been developed since Beethoven, the final group often develops into an independent third main part of the exposition with its own theme. One then speaks of the " final sentence ".
• In the recapitulation, the subordinate movement appears transposed back into the main key of the movement. In minor sonatas , where it was in the parallel major key in the exposition, it is often not returned in the minor key in the recapitulation but in its major variant . (For example in the first movement of Beethoven's 5th Symphony , which is in C minor: in the exposition the subordinate movement is in E flat major, in the recapitulation in C major.)

These features of the page set gradually emerged during the second half of the 18th century. From the middle Beethoven on, there are often deliberate deviations from this form (especially in harmony).