Oberon (Romantic opera in three acts) / Vocal Score with German libretto
Abu Hassan
Der Protagonist Op. 15 (1925) (complete opera score in one act with German libretto by Georg Kaiser)
Der Zar lässt sich photographieren (full opera score with German libretto)
Kain und Abel Op. 54 (with German libretto)
Kain und Abel Op. 54 (vocal score with German libretto)
Der Corregidor
Der Corregidor (Vocal Score with German libretto)
Eine florentinische Tragödie Op. 16 (with German libretto)
Eine florentinische Tragödie Op. 16 (Vocal Score with German libretto)
