- Chronology: Year 1900
- Location: Vienna State Opera (Hofoper, Wiener Staatsoper)
- Program: Iolanthe
- Conductor: Gustav Mahler (1860-1911)
- Orchestra: Vienna State Opera Orchestra
- Stage design:
- Notes: Vienna State Opera repertoire Gustav Mahler
The 240th evening of the season.
Pyotr Tchaikovsky, Iolanthe (for the 2nd time this season)
Raoul Mader, The Red Shoes (Ballet) (for the 9th time this season). Conductor: Josef Bayer.