Final answer:
Liszt's 'La Campanella' features virtuoso variations on a theme by Niccolò Paganini. It is part of the larger work 'Grandes études de Paganini', illustrating Liszt's significant contributions to the music of the Romantic era.
Step-by-step explanation:
Liszt's La Campanella is a set of virtuoso variations on a theme by Niccolò Paganini. This piece was part of Liszt's larger work, 'Grandes études de Paganini', which is a series of six piano studies that pay homage to Paganini's compositions and virtuosic violin techniques. Liszt, a key figure of the Romantic era, was known for his incredible piano skills and innovative compositions. The Romantic era itself saw a flourishing of musical creativity, with composers expressing the powerful drama of human emotion through their works. Artists such as Brahms, Tchaikovsky, and Schumann also thrived during this period, carrying forward classical traditions infused with a new passion and expressive depth.