Karel Reiner . Karel Reiner (1910-1979) was a prolific composer and was the only Czech composer to survive the Terezin Concentration Camp during the Second World War. This three-movement sonata, dating from the late 1950s, is standard repertoire in Central Europe and has been out of print for a number of years. The style is modern, adventurous, lyrical, acerbic, dramatic, rhythmic and advanced, with musical and technical challenges for both performers. This is a worthy addition to the serious solo repertoire and has been recorded a number of times. Available in solo tuning only.. Performance Level: Advanced.. Grade: Advanced