As far as anniversary gifts go, the one Dutch conductor Willem Mengelberg received in 1920 was pretty spectacular. To celebrate his 25th year as Music Director of the Concertgebouw Orchestra in Amsterdam, they staged a special month-long festival in honor of one of Mengelberg’s favorite composers — Gustav Mahler, the Austrian composer of monumental symphonies, who had, in fact, conducted the Concertgebouw several times before his untimely death at 50 in 1911.

Mahler was the conductor Mengelberg admired most, and Mengelberg and his orchestra were ardent champions of Mahler’s symphonies, too: their 1920 festival performed all nine of them over the course of two weeks that May.

Mahler’s widow Alma was in attendance, as were his younger Austrian contemporaries Arnold Schoenberg and Anton Webern, Danish composer Carl Nielsen and a young British conductor and Mahler fan named Adrian Boult, who reported on the festival for a British newspaper back home.

In 1995, the Concertgebouw staged another Mahler Festival on the 75th anniversary of the 1920 one, this time inviting the Berlin Philharmonic and the Vienna Philharmonic to participate. A hundredth-anniversary festival was planned for May 2020, but the COVID pandemic forced that Mahler cycle to be postponed until May 2025. Good things come to all who wait.

Gustav Mahler (1860-1911): Symphony No. 1 (Titan); Royal Concertgebouw Orchestra; Riccardo Chailly, conductor; London/Decca 448813