An early edition of Karl Jacobi’s Six Caprices op. 16 (1836) is available on IMSLP. These technical etudes are challenging, virtuosic, and enjoyable to play! The Caprices make great reading material, and they allow for ample expression in addition to requiring considerable technical facility. In his 1980 dissertation, A Biographical Dictionary of Bassoonists Born Before 1825, Woodrow Hodges explains that Karl (Carl) Jacobi was a bassoonist, composer, and teacher whose compositions were popular with bassoonists in the first half of the 19th century.