Audio to Chord Converter
A practical tool to extract chord progressions from audio for musicians, educators, and composers.
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About This Tool
Conceptually, it uses chroma features and harmonic change detection to identify chord events. Each segment is labeled with a root and quality (e.g., C, Am, G7) and optional key and tempo estimates provide broader musical context. The per-bar/per-segment outputs are designed for downstream workflows in DAWs, notation software, or teaching materials.
Use cases include a guitarist sketching a progression from a studio take, a student analyzing a pop song for practice, or a teacher preparing chord-based exercises. The tool's strengths lie in fast turnaround, repeatable results, and export options that support both human review and automated pipelines.
How to Use
- Upload an audio file (MP3, WAV, M4A) or compatible formats.
- Choose output format (text chords, JSON, or MIDI).
- Run analysis to generate per-bar chord labels with timing.
- Review results; enable optional key or tempo estimation if needed.
- Export or copy the chord data for practice, teaching, or arrangement.
Frequently Asked Questions
Find Quick Answers
Which audio formats are supported?
What outputs can I export?
How accurate is the chord transcription?
Is key or tempo estimation available?
Need to run multiple calculations?
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