Original: He made important early contributions to the representation of orchestral music on the gramophone , beginning in 1920 with Scriabin 's Poème de l'Extase and afterwards conducting many excerpts from Wagner 's Der Ring des Nibelungen and ( in 1925 ) the complete Symphony No. 9 of Beethoven .
Simplified: These include Scriabin 's Poème de l'Extase and many bits from Wagner 's Der Ring des Nibelungen and ( in 1925 ) the complete Symphony No. 9 of Beethoven .