This theme is composed by Frank Gari, who has composed news themes and image campaigns for local TV stations in almost every U.S. city. It was used near the beginning of the Gibson-Lunden era, a very successful period for the show. Technically, however, GMA was not a news program at the time. While its competitors were produced by the news divisions of their networks, GMA was produced by the entertainment division. The news updates, however, did come from the news division. In the mid 90’s the program was fully transferred to News.
“Good Morning America” 1989 – 1992 Theme

I didn’t know Frank Gari or Danny Pelfrey could compose something for a national morning news program… I thought he only did news themes to local television stations around the USA.