Complex sentence: Ollie Olsen (born Ian Olsen 1958, Melbourne, Australia) is an Australian composer, synthesist and sound designer who has been producing and performing rock, electronic and experimental music for the past thirty years.
Split into simpler sentences: Ollie Olsen (born 1958) is an Australian composer, synthesist and sound designer from Melbourne, Australia. Born Ian Olsen, he has been producing and performing rock, electronic and experimental music for the past thirty years.