No.

17, _Andante amoroso_ (somewhat longer interlude).
Mendelssohn, _Presto agitato_ in B minor for pianoforte (preceded by an "Andante cantabile" which has no connection with the sonatine-form of the _presto_, but may also be analyzed).

This design is very broad; each factor is expanded to its fullest legitimate extent, especially the "codetta" section.
{124} CHAPTER XVII.

THE SONATA-ALLEGRO FORM.
ORIGIN OF THE NAME .-- The fully developed Sonata-allegro form is the design in which the classic overture and the first movement of the symphony, sonata and concerto are usually framed.

The student must be careful not to confound this musical form with the _complete_ sonata of three or four movements.