Note 296 — Chapter VII · MUSIC AND PLASTIC
Charles Francis Atkinson translation
A movement in sonata form consists essentially of (a) First Subject; (b) Second Subject (in an allied key); (c) Working-out, or free development of the themes grouped under (a) and (b); and (d) Recapitulation, in which the two subjects are repeated in the key of the tonic.
The English usage is to consider (a) and (b) with the bridge or modulation connecting them, together as the “Exposition,” and the form is consequently designated “three-part.”—Tr.