He made important early contributions to the representation of orchestral music on the gramophone , beginning in NUMBER@1 with ORGANIZATION@1 's Poème de l'Extase and afterwards conducting many excerpts from PERSON@1 's Der Ring des PERSON@2 and -LRB- in NUMBER@2 -RRB- the complete Symphony No. NUMBER@3 of PERSON@3 .

These include ORGANIZATION@1 's Poème de l'Extase and many bits from PERSON@1 's Der Ring des PERSON@2 and -LRB- in NUMBER@2 -RRB- the complete Symphony No. NUMBER@3 of PERSON@3 .
