The Creation (Haydn) of Eve is usually sung by the same soloist who sings Gabriel. This was the practice Haydn followed, but some conductors prefer to cast each of the five roles with a different soloist. The choral singers are employed in a series of monumental choruses, several of them celebrating the end of one particular day of creation. The orchestra often plays alone, notably in the episodes of tone painting: the appearance of the sun, the creation of various beasts, and above all in the overture, the famous depiction of the Chaos before the creation. The oratorio is structured in three parts.
The Four Seasons (Vivaldi) as follows: There is some debate as to whether the four concertos were written to accompany four sonnets or vice versa. Though it is not known who wrote the accompanying sonnets, the theory that Vivaldi wrote them is supported by the fact that each sonnet is broken into three sections, each neatly corresponding to a movement in the concerto. Regardless of the sonnets' authorship, "The Four Seasons" can be classified as program music, instrumental music intended to evoke something extra-musical, and an art form which Vivaldi was determined to prove sophisticated enough to be taken seriously. In addition to these