There are nine of them. Sliding amid the crowd as if gravitation were no law, they weave their musical trail through the streets. It's a band, with all the instruments it takes, but the musicians, while playing, blend music with dance, and their black silhouettes draw strange choreographies. Notes are sewn all around as the soft concert moves on. Then suddenly they are gone, as fast as they might have come. Gliding towards some other part of town, in a perpetual musical fugue.