I arrive just before 7 pm - for a show that started at 12 noon and will wrap up about 8 pm.  The sound begins to envelope you as you enter the space. I then notice about 30 people lying on the floor listening.  Some are motionless.  Others are chanting or pounding the floor with various limbs.  I sit down in the front row of chairs - I think there are more people onstage in the action than with me in the stands.

After several minutes of sounds and audience members wandering in and out, a small band starts to...