In May 1837 Thalberg gave a concert in London, following which "The Athenaeum" gave an enthusiastic review. Such enthusiasm followed Thalberg throughout the following years. His fantasy op.33 on melodies from Rossini's opera "Moïse" became one of the most famous concert pieces of the 19th century, and was still praised by Berlioz in his "Memoirs" (1869). The fantasy was published at end of March 1839 and in May 1839 studied by Clara Wieck who was delighted by it. In 1848 the fantasy was played by Liszt's daughter Blandine.