Unfolding now in the great town of Ann Arbor is ONCE. MORE., a celebration of the legendary ONCE festivals of the 1960s. Laura Kuhn, of the John Cage Trust, performs Cage's Indeterminacy this afternoon; music of the co-founders, Robert Ashley and Gordon Mumma, is included in a concert tonight. Much more over the weekend. A sumptuous fiftieth anniversary guide is available online.... Anne Midgette ponders a very peculiar court case: a sixty-year-old violinist's lawsuit against Young Concert Artists.... Electoral stat: Meg Whitman spent $163 million in her unsuccessful attempt to become governor of California; the 2010 budget for the National Endowment for the Arts is $161.4 million. (Via Bryant Turnage.) ... Jacob Cooper's opera Timberbrit, a celebration of the comparatively brief but presumably intense love of Justin Timberlake and Britney Spears, has a revival at the Incubator Arts Project Nov. 18-20.... New works of Alexandra Gardner at Roulette on Nov. 18... Bruce Odland and Sam Auinger's Requiem for fossil fuels, first seen in 2007, comes to the World Financial Center Winter Garden on Nov. 12, in a full multi-channel version.... That same night, Georg Friedrich Haas's in vain will shake EMPAC in Troy, New York; Alan Gilbert and the NY Phil will unleash Adams's Harmonielehre on Carnegie Hall; and Nicholas Phan will sing Purcell and Britten at Zankel. There is no wrong move.