Complex sentence: He was part of the group known as the Apaches; his own style was recognizably impressionistic, owing something to the example of Claude Debussy, though it had traces of Richard Wagner and Richard Strauss also.
Split into simpler sentences: He was part of the group known as the Apaches. His own style, recognizably impressionistic, owed something to the example of Claude Debussy, though it had traces of Richard Wagner and Richard Strauss also.