The CMJ Music Marathon descends upon New York City a little later than usual this year, kicking off on Halloween and running through November 4.  The first round of announcements about performers has just been made.  Look forward to catching the Black Keys, Suzanne Vega, White Whale, Hot Chip, Madlib, Keren Ann, Cloud Clut, Portastatic, Ben Lee, Deerhoof, Joseph Arthur, and many others.