PERSONS
| Amadeus Adams | } | A musical conductor |
| Cecilia Adams-Ortenburg | } | His wife, an opera singer |
| Peter | } | Their child, five years old |
| Albert Rhon | ||
| Marie | } | His wife |
| Sigismund, Prince Maradas-Lohsenstein | ||
| Countess Frederique Moosheim | } | An opera singer |
| Governess | } | At the Adamses |
| Chambermaid |
The scene is laid in Vienna at the present day.