After much persuasion, this man was convinced by pianist Otakar Hollman to write a Capriccio for Piano Left-Hand and a Chamber Ensemble. A "Starodavny" and "Pozezhnani" are two of his Lachian Dances, while his first string quartet was inspired by Tolstoy's novella Kreutzer Sonata. His most famous orchestral work opens with an Allegretto fanfare scored only for percussion and an expanded brass section, before going on to depict "The Queen's Monastery" and "The Street Leading to the Castle." That work was written for the Sokol Festival, and this man's greatest champion in the conducting world was Sir Charles Mackerras. 
After much persuasion, this man was convinced by pianist Otakar Hollman to write a Capriccio for Piano Left-Hand and a Chamber Ensemble. A "Starodavny" and "Pozezhnani" are two of his Lachian Dances, while his first string quartet was inspired by Tolstoy's novella Kreutzer Sonata. His most famous orchestral work opens with an Allegretto fanfare scored only for percussion and an expanded brass section, before going on to depict "The Queen's Monastery" and "The Street Leading to the Castle." That work was written for the Sokol Festival, and this man's greatest champion in the conducting world was Sir Charles Mackerras. He also composed a liturgical work with movements titled "Slava" and "Svet" rather than the normal Latin titles, as that work was written in Old Church Slavonic. For 10 points, name this Czech composer of a noted Sinfonietta and the Glagolitic Mass.
After much persuasion, this man was convinced by pianist Otakar Hollman to write a Capriccio for Piano Left-Hand and a Chamber Ensemble.
Leos Janacek