Original sentence: Jerrold Immel (born 9 September 1936 in Los Angeles, California) is a United States television composer, whose most famous work is the theme tune to the soap opera Dallas
Edited sentence: Jerrold Immel (born 9 September 1936 in Los Angeles, California) is a United States television composer, whose most famous works are the theme tune to the soap opera Dallas and to a lesser extent, Voyagers