Final answer:
Hector Berlioz was not 55 years old when he wrote his Fantastical Symphony.
Step-by-step explanation:
The correct answer is False. Hector Berlioz was not 55 years old when he wrote his Fantastical Symphony. The symphony was actually composed when Berlioz was 27 years old. The Fantastical Symphony is a piece of program music that tells the story of an artist's self-destructive passion for a woman.