Pitch-accurate melody MIDI via Spotify Basic Pitch + smart chord-progression MIDI from chroma analysis. Drop your file and download both.
Vocal stem, instrumental, monophonic synth — whatever you want as MIDI.
Basic Pitch extracts pitches; chroma matching builds chord progression.
Two files: melody.mid and chords.mid. Drop them straight into your DAW.
Melody and chord progression — both delivered.
Spotify's open-source ML model, deployed locally for privacy.
Free downloads, no watermarks, no upload limits beyond 45 MB.
Melody MIDI is one note at a time (great for vocals, leads). Chord MIDI is full chord blocks every beat or half-beat — perfect for re-harmonising or backing tracks.
Yes — we run Spotify's open-source Basic Pitch model for melody extraction. Chord detection is our own chroma + Roman-numeral pipeline.
Yes — chord detection works on full mixes. Melody works best on monophonic sources (one note at a time).
Yes for melody, but chord output assumes Western 12-tone tonality and may simplify modal or chromatic passages.