BackgroundChime is all about placing shapes on a grid to make music. Gamers control a single shape at a time, and can move, rotate, and then place it on the grid. A beatline moves across the grid in time with the music, and sets off events when it hits placed shapes. Quads are created by placing shapes in solid blocks of 3×3 or more. When a quad is completed and the beat line hits, different musical samples are triggered dependent on its shape.
The size of the quad denotes the score, and multipliers can be achieved by having several quads on the screen at once. Once the beatline hits a completed quad, it is stamped down into the grid, earning the player coverage. Put simply, place blocks to create quads, create quads to gain coverage, and gain coverage to fill the grid.