Relationships
| lyricist: | Robert Katscher Erwin W. Spahn |
|---|---|
| composer: | Robert Katscher Hermann Leopoldi |
Recordings
| Date | Title | Artist | Length |
|---|---|---|---|
| recordings | |||
| 1929-09-05 | Der unverbesserliche Optimist (1929) | Hermann Leopoldi | 3:25 |
| 2008-04-02 – 2008-04-04 | Ich bin ein unverbesserlicher Optimist | New Budapest Orpheum Society | 3:46 |