I've missed a slew of concerts because of a bout of flu — the Look and Listen festival and the Jacob TV shows, among others. (I've also fallen far behind on mail, new CDs, life, etc.) I did make it to the Met for Mark Morris's Orfeo, which I'll be writing about next week, and which I liked intensely. I'd recommend that New Yorkers go see it, but the remaining performances — indeed all performances in the Met's final week — have sold out. This week brings the usual dense cluster of new-music events, several of them free and open to the public at the Skirball Center at NYU: the American Composers Orchestra has its annual readings on Tuesday and Wednesday, City Opera presents Vox 2007 on Saturday and Sunday (here are video previews of Robert Aldridge's Elmer Gantry and Gordon Beeferman's The Rat Land), and the On the Edge opera showcase happens on Saturday night. There's also David Hanlon's Hold the Applause concert on Sunday, at VIM: Tribeca. Hanlon, you may remember, won the Rest Is Noise Classical Apocalypse 1970 contest.