I participated in a cool "large-scale cassette-loop intervention" yesterday afternoon. Layne handed out 100 30-second loop audio cassettes to people over the last few months; the liner notes had a couple vague images of an unusual place in Rock Creek Park and a short poem about it. Our charge was to record 30-second pieces in reaction, and bring them in a cassette player to the location at the designated time and day.
The setting was pretty neat -- a place in the park where big pieces of stone that were once part of some imposing structure (the Capitol, I think) were left after being taken apart. They've been there a long time, as big trees have now grown up through the debris. The event was called "Reconstruction of a Monument, w/ Tape," and everyone stuck their tape loop somewhere amongst the rubble and left it to play. The assorted sounds emerged from crevices and mingled in interesting ways as you wandered around, adding intrigue to an already-mysterious place. Very cool.
Other pictures are at Flickr.