Complex sentence: In 1978, he moved to Los Angeles with his second wife Sabine as a producer; his plan was to export French songs to the American public, and he had a success with "Indian Summer", adapted from "L'été indien" by Joe Dassin.
Split into simpler sentences: In 1978, he moved to Los Angeles with his second wife Sabine as a producer. His plan was to bring French songs to the American public, and he had a success with "Indian Summer", adapted from "L'été indien" by Joe Dassin.