Hidden meaning behind the Mission: Impossible theme and other secrets of the classic spy track

They are four notes that changed the action game: “Dum dum da da.”That is the musical motif that instantly set the suspenseful stage for many a thrilling spy adventure as the theme song of “Mission: Impossible” — both for the TV series and Tom Cruise’s film franchise that is supposedly coming to a close with the “Final Reckoning” installment that opened in theaters on Friday.But those two long notes followed by two short ones had a secret message in them hidden by composer Lalo Schifrin, who wrote the legendary theme for the CBS show that ran from 1966 to 1973.With the “dash dash” standing for “M” and the “dot dot” for “I,” together they mean “MI.”Schifrin’s jazzy spy motif has not just survived but thrived through many a dangerous mission over the years, sending Cruise’s Ethan Hunt off running to do the impossible — yet again — in the new film.“Really, I had no idea this theme would catch on like it did,” Schifrin told the Washington Post.

“It was some kind of magic connection with people.”Here, we uncover some other trivia secrets of the “Mission: Impossible” theme song.“All I knew was that it would start with the lighting of a fuse,” Schifrin told the Washington Post about the series’ iconic title sequence.Otherwise, Schifrin had “complete freedom” in the creative process.“I just thought about the promise of adventure and excitement, with a little sense of humor,” he said.“I sat at my desk and wrote that theme in exactly 1½ minutes,” he told Emmy magazine in 2016.

“It was not inspiration; it was a need to do it.It was a little mission — impossible!”“The whole thing — including the chorus, the bongos, everything you hear — took me maybe three minutes.”“Orchestration’s not the problem for me,” Schifrin told The Post in 2017.

“It’s like writing a letter.When you write a letter, you don’t have to think what grammar or what syntaxes you’re going to use, you just ...