JACK Quartet Performance of Georg Friedrich Haas in the Dark Reviewed

From NYTimes.com:

The four players are instructed to be as far apart as possible. The JACK musicians sat in the four corners of the studio. The opening and closing sections of the quartet are fully notated. But the work is structured as a series of 18 “situations,” the composer’s preferred term for sections. Given the darkness, the players must perform from memory. But the sequence of the situations, and how many times each one is played, is determined by the performers in the moment. Any musician can invite the others to begin a section by playing a gesture from it; the others may accept or decline the invitation, until they come to agreement and proceed. The adventurous JACK Quartet, which has performed the piece 21 times, usually takes just over an hour to complete it, as happened on Tuesday.