Orchestra

A fixed quartet — one string, percussion, reed and wind voice — one pulse. Drag any dot on any shape — they all share the same tempo and scale, so however you tune them, it still sounds like one ensemble.

Click or tap a shape to select it, then use its buttons or the keyboard: numbers 3–9 set its vertex count, ←/→ rotate its phase. Space plays or pauses the whole ensemble. Each panel's Mute button silences that voice without breaking the shared beat.