I've been to a Folklife volunterrs' meeting today where Michael (the Grand Poohbah) said that the participants' party will be in a building with a big room for dancing and "about ten" smaller rooms for jamming.I'm guessing that "about ten" really means maybe five, but there will certainly be enough separate spaces that the singing contingent will be able to grab one or two of them.
The location and time of the party was included in the information packages that were sent to volunteers and performers.