Overview: Bernstein conducts Handel's Water Music and cites it as an indisputable example of classical music. "Exact" is the word that best defines classical music, Bernstein says, and he demonstrates with musical illustrations from Bach's Fourth Brandenburg Concerto, Mozart's Concerto No. 21 in C Major and The Marriage of Figaro, and Haydn's Symphony No. 102. The decline of classical music at the end of the eighteenth century is tied to Beethoven's innovations and the Romantic movement, and Bernstein conducts Beethoven's Egmont Overture.