Karl Amadeus Hartmann (2 August 1905 – 5 December 1963) was a German composer. Some have lauded him as the greatest German symphonist of the 20th century, although he is now largely overlooked, particularly in English-speaking countries. A sinewy counterpoint drives much of Hartmann's music, whether in the neo-baroque piano pieces from the 1920s, or his final two symphonies. But he could also pack a considerable punch as in the Piano Sonata, inspired by the sight of a procession of concentration camp victims from Dachau.
Gunter Bialas studied at the Breslau University and at the Berlin Academy of Church and School Music. He served as professor at the North-West German Academy of Music in Detmold and has earned many prizes, including the Music Prize of the Bavarian Academy of Fine Arts (1967). His compositions show his tendency toward conservatism as well as a desire for change and growth. His early work contains folksong elements and he later moved on to experiment with serial textures and exotic music such as African polyphony and heterophony.