A good week ahead. On Monday I'll be at the Boston Symphony concert already adumbrated. If the new pieces by Harbison and Wuorinen don't pan out, Levine puts on a grand Brahms Second. On Wednesday I'm in NJ for Harry Partch opera's Oedipus, in Montclair. Why Montcair? The armory of microtonal instruments that the remarkable Partch constructed for the performance of his music is now in the possession of Montclair State University. I will thus miss a Juilliard recital by violist Nadia Sirota, who is playing the Bach Chaconne, the Britten Lachrymae, and two premieres by Ryan Streber and Nico Muhly, the second an electronic piece featuring pre-recorded vocals by Antony of Antony & The Johnsons and programming by Björk's longtime collaborator Valgeir Sigurdsson. On Thursday, the Orchestra of St. Luke's plays Carnegie under the direction of Donald Runnicles, who shot up sharply in my estimation after his fluid and characteristic Rosenkavalier at the Met. The program includes Martinu's Revue de cuisine, a nineteen-twenties "jazz" ballet involving kitchen implements, and Mozart's Piano Concerto No. 25 with the hyper-musical Ivan Moravec. Saturday night, the American Youth Symphony presents a new piece by Lera Auerbach, a young Russian-émigré composer who's written music of extraordinary power and intensity. Finally, on Sunday, the New York City Opera introduces a new production of Puccini's Girl of the Golden West, which hasn't been staged in this city in years.