There are many of the so called flash mobs on various Internet platforms, and seldom we learned about any positive result. Now, Jurek Dybał, Director of the Sinfonietta Cracovia told us, that their flash mob, « probably the first musical flash mob in the history of Poland » has generated new audience. According to Dybał, « high culture performed in such unusual place as a shopping mall surprised many people. Some of the audience members, who had never listened to a Sinfonietta’s live performance before, became the regular concertgoers since that day (29.11.2014). Mission accomplished! »