Monotonous Forest: Ah, live performance
Last night’s fascinating evening of music by Peter Eötvös at Zankel Hall had some unanticipated “extras,” beginning with a particularly startling cell phone going off right before Encore, a brief string quartet written for György Kurtág’s 80th birthday. The woman answered the call. As the musicians waited, the violist tried his best, grinning, “Anyone else?” By this time an usher was glaring at the offender, who apparently didn’t know how to turn off the device. After it beeped the third time, the exasperated staffer finally grabbed it, shook a finger at the woman and left, accompanied by more than a few bursts of applause.
(Via The Rest Is Noise)

And here is another version of the events.