Complex sentence: Steinke began his career in 1947 as a sound engineer for Mitteldeutscher Rundfunk's Radio Dresden, where he worked on recorded productions with the Staatskapelle Dresden and Dresden Philharmonic orchestras.
Split into simpler sentences: Steinke began his career in 1947 as a sound engineer for Mitteldeutscher Rundfunk's Radio Dresden. Among other projects, he worked on recorded productions with the Staatskapelle Dresden and Dresden Philharmonic orchestras.