The Draperies improvise with no set program, no expressed strategies, but not exactly freely.  There's a real sense of shared responsibility here to make music for a listener to listen to (not for the players to play or the players to listen to; at least not until they're done playing).  There's a lot of music here: noise and pitch; high and low; short and long; thin (like a razor or a wisp of smoke from a blown out candle) and thick (like a pig-foot stew or a magic marker); not much fast and slow; all manner of attacks; lots of dynamics (but not too much loud and soft).  This is music with intensities that is utterly not about intensity.  The Draperies' music sounds nothing like folk music; but it feels like folk music.