After extensive musical education, Karel Berman started his career as a bass singer of opera in Opava. In March, 1943, Berman was deported to Theresienstadt, where he took part in cultural life as a singer, composer and director. On 11 July 1944, for example, he and Rafael Schächter produced the "Four songs to words of Chinese poetry" by Pavel Haas for the first time. Later he was also imprisoned in Kaufering and Auschwitz. He survived the camps and later became famous as an opera singer. In 1953, he joined the Prague National Theatre opera. Berman is also remembered as an opera director, having directed more than 70 operas. He also as taught at the Prague Conservatory from 1961–1971, and from 1964 at the Academy of Performing Arts in Prague.
Vrkočová, Ludmila: Slovníček hudebních osobností. 1999. ISBN 8O-901611-5-4
Herbert GantschacherViktor Ullmann - Zeuge und Opfer der Apokalypse / Witness and Victim of the Apocalypse / Testimone e vittima dell'Apocalisse / Svědek a oběť apokalypsy / Prič in žrtev apokalipse. ARBOS-Edition, Arnoldstein - Klagenfurt - Salzburg - Vienna - Prora - Prague 2015, ISBN 978-3-9503173-3-6, p. 125, p. 139, p. 271, p. 286