The document defines a cadenza as a virtuosic solo passage performed near the end of a concerto movement in an improvisational manner. It also mentions that a rondo form can be structured as ABACADA and describes the differences between opera seria and opera buffa, with opera seria being Italian tragic opera and opera buffa being Italian comic opera. It then provides a brief summary of the plot of Marriage of Figaro, describing the scheming Count, his interest in Susanna, and the conspiracy against him by Figaro, Susanna, and the Countess.

1. Concerto
Cadenza
Virtuosic solo passage in the manner of an improvisation,
performed near the end of a movement of a concerto.

2. Baroque - Retornelo
Return to theme .
Rondo form = ABACADA

3. Opera seria vs. buffa
Seria = Italian Tragic Opera
Buffa = Italian Comic Opera

4. Marriage of Figaro
the Count (a scheming middle-aged baritone)
is seeking the favors of the Countess' maid
and confidante, the young Susanna,
who is about to wed her fiancé, Figaro, the Count's valet.
When the Count detects the interest of the adolescent page,
Cherubino, in the Countess,
he tries to get rid of Cherubino
by giving him an officer's commission
in his own regiment.
Figaro, Susanna, and the Countess conspire
to embarrass the Count and expose his scheming.