Ludwig van Beethoven – Structural innovations: Beethoven remains the supreme exponent of what may be called the architectonic use of tonality. In his greatest sonata movements, such as the first allegro of the Eroica, the listener’s subconscious mind remains oriented to E-flat major even in the most distant keys, so that when, long. Styled as a series of monologues pairing her experiences with historic figures such as Joan of Arc,…