In which year was this Czech composer, musical theorist, folklorist, publicist and teacher born who composed "Concertino?"
Leoš Janáček Leoš Janáček (] , baptised Leo Eugen Janáček; 3 July 1854 – 12 August 1928) was a Czech composer, musical theorist, folklorist, publicist and teacher. He was inspired by Moravian and other Slavic folk music to create an original, modern musical style.
Jan Šťastný Jan Šťastný (c.1764–c.1830) (also Stiasny, Stiastny) was a Czech composer and cellist from the end of the 18th century to the beginning of the 19th century. He is considered one of the founders of Czech national violoncello school.