A group of five musicians is playing instruments in an underground pedestrian tunnel. From left to right, a person in a pink shirt plays a saxophone. Next to them, a person in a dark blue shirt plays a trombone. Further to the right, a person in a black t-shirt and baseball cap plays a saxophone. Behind them, a person in a black t-shirt plays a drum kit. Finally, on the far right, a person in a black t-shirt and shorts plays a trombone. In the foreground, a small black sign with a QR code and text is placed on the ground. The tunnel has a concrete floor and ceiling with visible light fixtures. Red fire call boxes are visible on the wall in the background.