How Elton John and Grammy producers kept the magic going long after the award show ended

“Let’s make sure there’s a keyboard in Elton’s dressing room,” Ken Ehrlich, the longtime executive producer of the Grammy Awards, ordered before ducking away to meet Elton John and Miley Cyrus.

Ehrlich was on his way to oversee a soft run-through of “Tiny Dancer,” which would ultimately be performed…