Complex sentence: In 1927, Casavola radically revised his views, and chose to break decisively from the Futurist movement; his musical direction had already begun to display increasingly lyrical and refined qualities.
Split into simpler sentences: In 1927, Casavola radically revised his views, and chose to break decisively from the Futurist movement. In truth his musical direction had already begun to display increasingly lyrical and refined qualities.