In 1911 he was offered a libretto by the writer Alfred Maria Willner for an opera about Franz Schubert , based on the novel , Schwammerl by Rudolf Hans Bartsch .
This was turned down and he was told to use Franz Schubert 's music in a pastiche instead .
In 1911 he was offered a libretto by the writer Alfred Maria Willner for an opera about Franz Schubert , based on the novel , Schwammerl by Rudolf Hans Bartsch , but this was turned down and he was told to use Schubert 's music in a pastiche instead .