 This goes all the way back to him studying field recordings of what African music sounded like. And it's in all sorts of crazy time signatures and polyrhythmic things. That's Dave Rubeck's son, Chris. He says his dad, in 1959, challenged his bandmate, saxophonist Paul Desmond, to write a song in that unfamiliar 5-4 time. And when they first went into the studio at Columbia Records, they tried to record Take Five,