Ebert's winning soundtrack for the Robert Redford film All Is Lost was chosen above offerings from the likes of John Williams, Hans Zimmer, Alex Heffes and fellow Golden Globes newcomer Steven Price for his score for Gravity.
Accepting the award in person, Ebert commented: "I cannot believe this, this is crazy."
All three of Williams, Zimmer and Price's scores (for The Book Thief, 12 Years A Slave and Gravity respectively) have been nominated in the soundtrack category for the upcoming BAFTAs in February.
As Awards Season rumbles on, at least some of the same scores are expected to gather nominations for the Oscars, which will be announced on January 16th.
Other big winners at the Golden Globes last night were the comedy-drama American Hustle, which took home gongs for best Motion Picture (musical or comedy), Best Actress for Amy Adamas and Best Supporting Actress for Jennifer Lawrence.
12 Years A Slave, soundtracked by Hans Zimmer, was expected to sweep the board, but was generally thought to under-perform at the awards, despite winning Best Moton Picture (drama).