CHROMA

circle-of-fifths color analyzer

Grant microphone access, then play or sing near the mic.

Drop a WAV / MP3 / audio file here, or click to choose

Connect a MIDI keyboard or controller, then play notes or chords.

Play the keys with your mouse or computer keyboard (A–K for white keys, W E T Y U for black; Z/X shifts the octave). No hardware needed.

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tonal-ness
key --
circle of fifths
spectrum analyzer — note bands as color
spectrogram — frequency over time
color palette — play & save all 88 notes
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0 / 88 capturedPlay a note and hold it to capture its color.
spectrum — live
chroma — energy per pitch class
note detail — 88 constant-Q bands · fundamental · harmonics
waveform — raw signal
circles — the strongest notes as spinning epicycles