For 10 points, name this Austrian composer of The Song of the Earth, the Titan Symphony and Symphony of a Thousand.
This composer included two Nachtmusik movements in his Seventh Symphony, and in one of his song cycles, the hero sings "Ich hab'ein glühend Messer." Besides writing Songs of a Wayfarer, he set the hymn "Veni, creator spiritus" in one work and includes a minor key version of(*) "Frere Jacques" in another. This composer is known for the adagietto movement of his Fifth Symphony, and he has horns mimic an ape call in a setting of Li Po poems. For 10 points, name this Austrian composer of The Song of the Earth, the Titan Symphony and Symphony of a Thousand.
This composer included two Nachtmusik movements in his Seventh Symphony, and in one of his song cycles, the hero sings "Ich hab'ein glühend Messer."
Gustav {Mahler}