Occupy Guitarmy is seeking a thousand musicians for a May Day march from Bryant Park to Union Square. The setlist includes "¡El pueblo unido, jamás será vencido!"... Tom Service has launched a Contemporary Classical guide at the Guardian website. "Contemporary" is broadly defined as "born in the past hundred years," plus Elliott Carter.... On the first weekend in May, Line Upon Line Percussion in Austin, Texas, will present a Xenakis festival, with performances of Pléïades and Persephassa and a JACK Quartet show. Watch a preview clip.... A cool Ensemble ACJW program at (Le) Poisson Rouge this Sunday: selections from The Art of Fugue intermingled with Michael Gordon's The Low Quartet, Feldman's Durations I, Reich's New York Counterpoint, David Lang's Wed, and Andriessen's Workers Union.... A few other notable NYC-area events in the coming week: a David Daniels / Mark Morris collaboration at Princeton on May 3; a new piece by Tristan Perich with Yarn/Wire at ISSUE Project Room tomorrow night; the big Crossing Brooklyn Ferry festival at BAM May 2-4; a Kaija Saariaho program with ICE at Roulette on May 2; Joseph Lin and the Camerata Notturna in a Bachian concert on May 5.... Last Sunday, Norman Scribner, the founding leader of the Choral Arts Society in Washington DC, bid farewell with the German Requiem. The Post ran a profile of the conductor and, of course, an Anne Midgette review. Scribner's son David is a gifted DC-area chef.... The spring 2012 issue of the excellent experimental-music magazine Signal to Noise has an absorbing piece, by William Gibson, on Nonesuch new-music LPs of the 60s and 70s: it includes the essential detail that Richard Taruskin played viola da gamba on the recording of Eric Salzman's The Nude Paper Sermon.... Was Kevin Puts's Silent Night the best American composition of 2011, as a distinguished Pulitzer Prize jury concluded? Judge for yourself by listening at NPR or at the Minnesota Opera website.... I know nothing about the product, but I enjoyed this ad for Klispch headphones, with the St. Louis Symphony's Danny Lee playing the Kodály solo cello sonata.