Mahler
From Memory Alpha, the free Star Trek reference.
Gustav Mahler (1860-1911) was a late Romantic Bohemian-Austrian Human composer. Among his works, Symphony No. 1 in D major, also known by its nickname "The Titan", was written in the 1880s.
Mahler's Symphony Number One was played on the ship-wide comm when Kashyk came aboard USS Voyager in 2375. (VOY: "Counterpoint")
