In jazz slang an “out” tune is one that is unusually complex or challenging. Time Out was a sly title for an album that took adventurous liberties with rhythm, from the 9/8 time signature of “Blue Rondo à la Turk” to the famous 5/4 Paul Desmond composition “Take Five,” which remains one of the very few jazz standards that is recognized by millions of non-jazz fans. This album would end up overshadowing all of Dave Brubeck’s subsequent career, which is perhaps unfair but was also probably inevitable.