List of compositions by Gustav Mahler

In his juvenile years he attempted to write opera and instrumental works; all that survives musically from those times is a single movement from a piano quartet from around 1876–78.

The earliest surviving whole work is Das klagende Lied (The Song of Lament), a cantata for soloists, chorus and orchestra which was completed in 1880 just before Mahler took up his first conducting post.

Music critic Neville Cardus writes that this anthology nourished the composer's "pantheistic feelings about life and the world ... in which an all-embracing love [makes] all creatures kin.

[6] The final period covers the last works: the symphonic Das Lied von der Erde ("The Song of the Earth") and the Ninth and Tenth Symphonies.

Mengelberg claimed that these manuscripts included drafts of four early symphonies, which he and the German composer Max von Schillings had played through on the piano.