- Chronology: Year 1909
- Location: Carnegie Hall
- Nature: First festival concert
- Program: Schumann, Beethoven, Wagner, Wagner
- Composition Mahler: No
- Soloist: No
- Conductor: Gustav Mahler (1860-1911)
- Orchestra: New York Philharmonic Orchestra (NYPO/NPO) (a total of 100 players, including reinforcements)
- Chorus: No
- Concert number: c216
- Notes: To acquaint Mahler with “his” new orchestra (New York Philharmonic Orchestra (NYPO/NPO)) and vice versa, two “festival” concerts were arranged (by his impresario Henry Wolfsohn). It was understood that Mahler would judge the orchestra’s standard himself, and assess the capabilities of each individual player. For each concert Mahler was only granted 2-3 days for rehearsals
