The art song flourished in the Romantic period as composers sought to capture the emotional impact of poetry through music. The genre is well-suited for personal expression, using a solo voice accompanied by piano. Notable composers of lieder, the German art song, included Franz Schubert and Robert Schumann. Their songs often combined to form song cycles on a theme. Character pieces for solo piano were also a form of program music from this era, allowing composers like Chopin to portray a mood or moment through music. Larger programmatic works included Berlioz's Symphonie Fantastique, which used a recurring theme to unite a multi-movement work depicting a story.