 Secondly, he composed one act at a time, carrying the composition of the music through all three stages from preliminary draft to full score (but not necessarily fair copy) for the first act before proceeding to the composition of the second act; this way he ensured that as little time as possible elapsed between the initial drafting of a passage and its final orchestration.Thirdly, he frequently worked on the various drafts "at the same time", orchestrating the earlier scenes of an act while still drafting the later ones.Discounting the earlier sketches he had made for "Der junge Siegfried" (summer 1851), the composition of "Siegfried" was begun in Zürich in September 1856.