unfolding

“Because most diesel failures can be traced to electrical faults, minor in themselves but often difficult to pin-point, any unscheduled halt during a trial run is often the signal for the frenzied unfolding of wiring diagrams and the appearance of an impressive array of voltmeters and circuit testers.”

“If I had the space, I'd cite dozens more examples of Gould's graceful unfoldings of various Beatle tunes.”