AI chord detection with Roman-numeral analysis. Drop a track and get the full progression with Camelot key, plus MIDI export.
MP3, WAV, FLAC up to 45 MB.
Chord-by-chord chart with timestamps and Roman numerals.
Download chords.mid for your DAW.
Chord chart with timestamps, not just the dominant chords.
I-V-vi-IV style notation for transposing across keys.
Downloadable chord MIDI for your DAW.
We compute a chromagram across each beat, then template-match against 24+ chord types (major, minor, 7, m7, sus2, sus4, dim, aug, etc).
Yes — and 9ths in some cases. Tonally ambiguous chords may collapse to their nearest triad.
Roman numerals describe a chord's role relative to the key (I, vi, IV, V), making it easy to transpose or reharmonise.
Both. Cleaner harmonic content (piano, pad, simple guitar) gives the most accurate read; busy mixes still produce a usable chart.