Editing Gustav Mahler (section)

====Mature composer====
[[File:Mahler Composition Hut Klagenfurt.jpg|thumb|left|alt= A small grey hut, surrounded by woods, with an open door to which is affixed a picture of the composer|Mahler's second composing hut, at [[Maiernigg]] (near [[Klagenfurt]]), on the shores of the [[Wörthersee]] in Carinthia]]
The demands of his twin appointments in Vienna initially absorbed all Mahler's time and energy, but by 1899 he had resumed composing. The remaining Vienna years were to prove particularly fruitful. While working on some of the last of his {{lang|de|Des Knaben Wunderhorn}} settings he started his [[Symphony No. 4 (Mahler)|Fourth Symphony]], which he completed in 1900.<ref>Carr, p. 233</ref> By this time he had abandoned the composing hut at Steinbach and had acquired another, at [[Maiernigg]] on the shores of the [[Wörthersee]] in [[Carinthia]], where he later built a villa.<ref>Blaukopf, p. 137</ref> In this new venue Mahler embarked upon what is generally considered as his "middle" or post-{{lang|de|Wunderhorn}} compositional period.<ref name=Cooke71>Cooke, pp. 71–94</ref> Between 1901 and 1904 he wrote ten settings of poems by [[Friedrich Rückert]], five of which were collected as {{lang|de|[[Rückert-Lieder]]}}.{{refn|One of the Rückert poems, "{{lang|de|Liebst du um Schönheit|italic=no}}", was left unorchestrated until this was carried out by a Leipzig musician, Max Puttmann. The song is usually performed alongside the others.<ref>Carr, p. 129</ref>|group=n}} The other five formed the song cycle {{lang|de|[[Kindertotenlieder]]}} ("Songs on the Death of Children"). The trilogy of orchestral symphonies, the [[Symphony No. 5 (Mahler)|Fifth]], the [[Symphony No. 6 (Mahler)|Sixth]] and the [[Symphony No. 7 (Mahler)|Seventh]] were composed at Maiernigg between 1901 and 1905, and the [[Symphony No. 8 (Mahler)|Eighth Symphony]] written there in 1906, in eight weeks of furious activity.<ref name=Sadie510 /><ref>Carr, p.148</ref>

Within this same period Mahler's works began to be performed with increasing frequency. In April 1899 he conducted the Viennese premiere of his Second Symphony; 17 February 1901 saw the first public performance of his early work {{lang|de|Das klagende Lied}}, in a revised two-part form. Later that year, in November, Mahler conducted the premiere of his Fourth Symphony, in [[Munich]], and was on the rostrum for the first complete performance of the [[Symphony No. 3 (Mahler)|Third Symphony]], at the {{lang|de|[[Allgemeiner Deutscher Musikverein]]|italic=no}} festival at [[Krefeld]] on 9 June 1902. Mahler "first nights" now became increasingly frequent musical events; he conducted the first performances of the Fifth and Sixth Symphonies at [[Cologne]] and [[Essen]] respectively, in 1904 and 1906. Four of the {{lang|de|[[Rückert-Lieder]]}}, and {{lang|de|Kindertotenlieder}}, were introduced in Vienna on 29 January 1905.<ref name=Franklin7 /><ref name=Sadie510 />