Underground Playground is a fictious festival made for a school course. In this festival, the music scene and musicianship of Brussels is put on display throughout three tracks. Grooves and parties, the jazz and student scene and finally the more experimental avant-garde scene.

Locations have been choosen in a way that people could easily switch from one track to another, or stay in their lane as they please. Utilizing various iconic but also underground venues, the app has a metro line theme going on, since visitor would inevitably end up there.