Press a key or click a cell to make it [0]. Esc cancels.
Press a key or click a cell to make it [0]. Esc cancels.
When you play a key, every note currently sounding (held, or kept by the pedal) is moved to within the octave below it. Each one allows only the valid intervals listed below for that physical distance, and a candidate pitch survives only if it makes a valid interval with all of them. The survivor with the best preference wins, with ties going to the most concordant (lowest total Tenney height, log₂ n·d).
With nothing else sounding, a key takes its most preferred interval over the key root. If no candidate survives, the chord can't be reconciled; the key stays silent and is marked ✕.
Nothing is remembered between chords: let go and any comma drift is forgotten. Notes already sounding are never retuned.
Grouped by clavier interval, most preferred first. Spelled from the current key root (C).