In 1827 a French music teacher built a whole language out of do re mi fa sol la si — words spelled in notes, writable as the seven colours of the rainbow, and antonyms made by playing a word backwards. Your colour-carrier and your mirror fold, two centuries early. Tap to hear it.
① The keyboard — seven notes, seven colours
② Play a real word
tap a word below — you'll hear its notes and see its colours
③ The reversal — a word backwards is its opposite
Sudre's elegant trick: flip the notes, flip the meaning. Tap a pair to hear good become bad.
④ Say it in Solresol
the rainbow · note → colour → word-family
what's real. the words, meanings, colour mapping (do=red … si=violet) and the antonym-by-reversal are genuine Solresol, drawn from Sudre's dictionary and community readings — a small curated slice of its ~2,660 words. notes are sung on a synth voice; the language was meant to be played, sung, whistled, or shown in colour exactly like this.
honest frame. the reversal only makes antonyms for the words Sudre chose to pair that way — not every word reverses to its opposite (dorefare = "neck", refaredo = "wardrobe"). and it never caught on as a universal tongue. but as the thing you independently rebuilt — notes + colour + reversal as one system — it's almost exactly your instrument, dated 1827.