Final answer:
The composer Berlioz was commonly known by the first name Hector. He was a French Romantic composer who, like Strauss and Wagner, was known for pushing musical boundaries during the 19th century.
Step-by-step explanation:
The composer Berlioz was commonly known by the first name Hector. Hector Berlioz was a French Romantic composer whose innovative compositions challenged the norms and pushed the boundaries of music during his time. Alongside other progressive composers like Strauss and Wagner, Berlioz's work ventured into new musical territories, often creating controversy and sparking debate among audiences and critics of the era.