Find the color on the keys. Any key wearing it counts.
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Red
Red is C — the white key just left of the two black keys. There is one in every octave, and any of them counts.
How long is a round?
Every color gets two tries, and the key is shown if both are used up. The twelve single-color rounds start over when that happens. After them comes all twelve in a row — and getting through that is the whole game. Miss one and you get a short practice round aimed at it, then straight back to all twelve.
