Chiptune Maker
E edit · S split · click empty: paint · click filled: select, click again to erase · drag: move · Shift+drag: marquee · drag edges: resize · right-click: pick note · long-press: cell actions · ⌘/CTRL+Z undo · ⌘/CTRL+C/X/V · DEL clears · SPACE plays.
► Add bars to build your song. Each bar plays one pattern with optional FX.