'''''Das Lied von der Erde''''' ("The Song of the Earth") is a composition for two voices and orchestra by the Austrian composer Gustav Mahler between 1908 and 1909. The work was described as a symphony when published, and it comprises six songs for two singers who take turns singing the songs. Mahler specified the two singers should be a tenor and an alto, or else a tenor and a baritone if an alto is not available.''Das Lied von der Erde | Eine Symphonie für eine Tenor- und eine Alt- (oder Bariton-) Stimme und Orchester (nach Hans Bethges "Die chinesische Flöte") | von Gustav Mahler | Partitur |'' Translated: The Song of the Earth. A Symphony for Tenor and Alto (or Baritone) Voice and Orchestra (after Hans Bethge's "The Chinese Flute"). By Gustav Mahler. Score. Published by Universal Edition, 1911. The work was composed following the most painful period in Mahler's life, and the songs address themes such as those of living, parting and salvation. On the centenary of Mahler's birth, the composer, conductor, and known Mahler conductor Leonard Bernstein described ''Das Lied von der Erde'' as Mahler's "Greatest symphony".New York Philharmonic Young People's Concerts. Original Broadcast February 7, 1960. "Who is Gustav Mahler?"