ABT Brings Back Twyla’s “Bach Partita”

American Ballet Theatre is bringing back Twyla Tharp’s “Bach Partita,” this week, at Lincoln Center. For this advance piece, I spoke with Susan Jones (the ballet mistress who is doing the staging), a couple of dancers, and  Charles Yang (the violinist) about the revival of what Arlene Croce described as an “enormous, whirling, weightless ballet”