What happened to the orchestra at romantic period?

During the Romantic period (approximately 1820-1900), the orchestra expanded significantly in size and diversity, reflecting the era's emphasis on emotional expression and drama in music. Composers like Berlioz, Tchaikovsky, and Mahler introduced new instruments and richer textures, enhancing the orchestra's capabilities. This period also saw the emergence of the symphonic poem and the concert overture, allowing for greater thematic and narrative exploration. Overall, the Romantic orchestra became a powerful vehicle for conveying complex emotions and innovative musical ideas.