Pavel Haas was a Czech composer who was murdered during the Holocaust. He was an exponent of Leoš Janáček's school of composition, and also utilized elements of folk music and jazz. Although his output was not large, he is notable particularly for his song cycles and string quartets.

Leoš Janáček was a Czech composer, musical theorist, folklorist, publicist, and teacher. He was inspired by Moravian and other Slavic music, including Eastern European folk music, to create an original, modern musical style.