“What would you do?” is one of three projects responding to the Hejnał Mariacki, a five-note tune played by a trumpeter each hour on the Main Square, bound to the history and traditions of the city. Each of these projects turns the square into a vast stage, with people passing through becoming the audience. “Would would you do?” was concieved by Macio Moretti, Polish musician and cross-genre multi-instrumentalist. He is also the founder of one of the most important Warsaw alternative music labels - Lado ABC. In "What Would You Do?", the last note of the Hejnał is extended for as long as possible to attempt to avoid the moment of being shot with an arrow by an Tatar invader, which according to legend killed the original 13th-century trumpeter mid-note. Piece is performed by Tomasz Ziętek.