The first movement continually returns to the refrain, Dunkel ist das Leben, ist der Tod (literally, 'Dark is life, is death'), which is pitched a semitone higher on each successive appearance. Like many drinking poems by Li Bai, the original poem 'Bei Ge Xing' (a pathetic song) mixes drunken exaltation with a deep sadness.The singer's part is notoriously demanding, since the tenor has to struggle at the top of his range against the power of the full orchestra. This gives the voice its shrill, piercing quality, and is consistent with Mahler's practice of pushing instruments, including vocal cords, to their limits.---A listening guide of Das Lied von der Erde – Das Trinklied vom Jammer der Erde with Lew Smoley.