bAlllAd is a public transportation fuel to sympathy and good humor. During a helmeted stroll, the sound commander Bertrand, conveys his passengers by the tips of the ears. And if the bAlllAd doesn’t make any noise... it knows how to stand out. In headphones, it’s a festival of sounds! Large or small, the listening passengers gradually become the real actors of this stroll in the heart of the park Anne and Gérard Philipe. After breaking the four walls, they will become without any apprehension: singers, dancers, and even conductor of this show journey.