Complex sentence: He toured with Englebert Humperdink, Nina Hagen and Rita Coolidge, and composed or performed with Timothy B. Schmidt, Kenny Loggins, Roy Orbison, Kim Carnes, Bette Midler.
Split into simpler sentences: He toured with Englebert Humperdink, Nina Hagen, Rita Coolidge. He composed or performed with Timothy B. Schmidt, Kenny Loggins, Roy Orbison, Kim Carnes, Bette Midler.