As in the earlier works , he wrote his own libretto , this time based on both the novel and its dramatization by Kafka 's friend Max Brod .
For his sixth opera , Reimann turned to Kafka 's novel .
As in the earlier works , Reimann wrote Reimann 's own libretto , this time based on both the novel and its dramatization Kafka Kafka 's friend Max Brod .
For his sixth opera , Reimann turned to Kafka 's novel .