An homage to Steve Reich, including his Double Sextet, Traveler’s Prayer, and, most enticing of all, the LA Phil commission Reich/Richter, synched to Gerhard Richter’s computer-generated film of his painting 946-3. In New York, at The Shed, a previous collaboration between the American and the German was a head trip of a celestial order. Here’s hoping for a new jolt of the same. —Matthew Gurewitsch