GrooveArena, the four-minute beat battle

Field notes

GrooveArena structures a music-making round around a shared constraint: one tempo, eight 4/4 bars, and four minutes on the clock. Its kit separates seven drum voices into a step grid and five melodic voices into a piano roll, with triplet snapping and whole-bar repetition available. The page says guests can join private rooms, while ranked matches and library publishing require accounts. A displayed library includes named examples such as “Slow Burn” at 72 BPM and “Double Time” at 108 BPM.