1), _Menuetto_ and _Trio_.

Already analyzed as a perfectly genuine Song with Trio.
2.

Beethoven, pianoforte sonata, op.

28, second movement, _Andante_.
The principal Song is in the Three-Part form, with exact repetitions.
The subordinate song differs so radically in style, and each song is so complete and distinct from the other, that the form is almost certainly Song with Trio; but there is a strong intimation of the Rondo-form in the elaborate variation of the _da capo_, and in the treatment of the coda (last 17 measures), in which motives from both Songs are associated so closely as to vindicate their kinship.

In a word, this movement possesses,--despite the apparent independence of its Songs,--some degree of that continuity, compactness and artistic finish which culminate in the genuine Rondo-form.
3.