The lab · From 01.9 — Triads
← Back to the LabChord Rosetta
Play or type the notes of any chord. You get its name, inversion, notation, and sound — then, the way a prism fans white light into colour, it opens into thirteen ways of hearing it, ranked by what each one can tell you about this chord. A prism invents nothing; every reading was already folded into the sound.
New here — what am I looking at?Chord Rosetta, Explained: a plain-language guide to every reading on this page.Double-click a black key to flip its spelling (G♯ ⇆ A♭) — the spelling decides readings like ♯5 vs ♭13.
Link to any chord: ?notes=C4,E4,G4 · add &lens=forte to open a lens first. Nothing is saved or tracked.