- Chronology: Year 1899
- Location: Vienna State Opera (Hofoper, Wiener Staatsoper)
- Program: Haydn, Apother and Opernprobe
- Conductor: Gustav Mahler (1860-1911)
- Orchestra: Vienna State Opera Orchestra
- Stage design:
- Notes: Gustav Mahler accompanied the recitatives himself on the piano and replaced the lost Overture of Der Apotheker (Haydn) with the London Symphony (No. 104) (Haydn). Vienna State Opera repertoire Gustav Mahler
Rehearsals for Mahler performances: Siegfried Wagner, Der Bärenhäuter (Rehearsal) (for scenery).
The 191st evening of the season.
Joseph Haydn, Symphony in D Major Hob. I/104 (Concert performance) (for the 4th time this season).
Joseph Haydn, The Apothecary (for the 3rd time this season).
Albert Lortzing, The Opera Rehearsal (for the 4th time this season).
Joseph Hellmesberger, Jr., Harlequin als Elektriker (Ballet) (for the 1st time this season). Conductor: Josef Bayer.