But it is more than either of these.
The term "Recapitulation" is more comprehensive than "recurrence" (in the sense in which we have thus far employed the latter word), as it always refers to the reproduction of a _collection_ of themes, and, chiefly on this account, is subject to certain specific conditions of technical treatment.
Recapitulation, in the larger designs of composition, _invariably involves transposition_, or change of key,--the transposition of the First Subordinate theme, from the key chosen for its first announcement (in the Exposition) back _to the principal key_ of the piece.

This, as may be inferred, greatly affects the original transition and re-transition; and it may necessitate changes within the theme itself, in consequence of the change of register.
Further, the last recurrence of the Principal theme being no less than its fourth announcement, is rarely complete; as a rule, a brief intimation (the first motive or phrase) is deemed sufficient, and this is then dissolved into the coda; or the Principal theme, as such, is omitted, or affiliated with the coda, or one of its sections.
{119} For an illustration of the Third Rondo-form, the student is referred to the last movement of Beethoven's pianoforte sonata, op.

2, No.

2, the diagram of which is as follows:-- _Middle_ _Exposition._ _Division_ _Recapitulation._ -- ---------------------- -- -------- -- -------------------------------- Pr.Th.

1stSub.Th.