Reiner's musical output was created during fifty years, since 1928/9 to 1979, and was firmly connected with the political situation in Czechoslovakia in the 20th century. His first artistic period was influenced by his teachers and models (
Alois Hába, Josef Suk, Emil František Burian, and
Erwin Schulhoff), it was part of Czech artistic
avant-garde, and it was later rejected by communists as formalism. After the critique of the party he was forced to find new, more traditional and conservative ways of composing. This period lasted roughly to 1960. The last period (1960–79) is considered the most artistically valuable. The musical trends in Czechoslovakia were freer in that time and Reiner thus was able to show his expressive musical thinking. He composed almost in all musical categories, created vocal works (songs, choirs), instrumental works (for solo instrument, chamber, symphonic), vocal-instrumental works (cantata, opera), film music, incidental music, composed popular dance songs at the start of his career, and was inspired also by jazz and folk music. He composed for almost all instruments, including
bass clarinet,
dulcimer, solo drums and for
baritone saxophone. A re-interpretation of songs from the Květěný kůň cycle and a performance from the Terezín ghetto Staročeská Esther was prepared by Aida Mujačič. == Selected works ==