Aretha Franklin and Michael Jackson.“If one really is serious about wanting to write songs that are original, that really speak to people, you have to feel like you created something that wasn’t there before — which is the ultimate accomplishment, isn’t it?” Marilyn Bergman told The Huffington Post in 2013. “And to make something that wasn’t there before, you have to know what came before you.”Their songs included the sentimental Streisand-Neil Diamond duet “You Don’t Bring Me Flowers,” Sinatra’s snappy “Nice ’n’ Easy” and Dean Martin’s dreamy “Sleep Warm.” They helped write the uptempo themes to the 1970s sitcoms “Maude” and “Good Times” and collaborated on words and music for the 1978 Broadway show “Ballroom.”But they were best known for their contributions to films, turning out themes sometimes remembered more than the movies themselves.