This is an accidental ensemble made by the inhabitants of a building. All of them happen to be musicians. They all noticed that they do lots of practicing on their own respective instruments, and they coincidentally share similar schedules. After making this discovery they agreed to practice together, thus creating unpredictable music. It was not improvising, but rather counting on a passerby to play an orchestra conductor for them. It worked, and since then, the building was never the same. Click on any musicians to start a performance.
