Audio to Chords Extractor
Instantly convert any audio file into accurate, easy-to-read chord progressions. Upload your track and visualize chords across the entire song in seconds.
This is a beta version. A more advanced chord prediction engine is coming soon!
How It Works
What is an Audio-to-Chords Extractor?
An Audio-to-Chords Extractor is a smart music analysis tool that converts audio file into accurate chord progressions. It listens to your track, detects harmonic changes and transforms the sound into clear, readable chords.
How to Use Our Audio-to-Chords Extractor :
Upload Your Audio File : Simply drag and drop your audio files to get started.
Automatic Chord Detection : Our intelligent engine analyzes the track and extracts accurate chords in real time.
Key & Confidence Analysis : Instantly identify the global key and see confidence levels for reliable results.
Timeline Visualization : View chords mapped across the song timeline for easy tracking and practice.
Section-Based Breakdown : See chord changes bar-by-bar or section-by-section for deeper musical understanding.
Download & Share : Export your chord map for printing, sharing, or further editing.
Our Audio-to-Chords Extractor simplifies music learning by turning complex audio into clean, structured chord progressions – making practice, performance, and songwriting easier than ever.
Important Note :
Note: For the highest accuracy, this tool works best with instrumental tracks or piano solos where harmonic changes are distinct and clear. Vocals or heavy percussion may occasionally impact the detection precision.
Harmonic Event Detection
This application uses a high-precision Goertzel Algorithm to isolate the core energy of the 12 chromatic notes across multiple octaves in your audio. Unlike fixed-bar systems, our engine scans for Harmonic Transitions—identifying the exact moment a tonal shift occurs. By mapping these frequencies against the Krumhansl-Schmuckler pitch-class profiles via Pearson Correlation, the app identifies the most likely chord used at that specific timestamp.
The Confidence Number
The small circle on each chord box represents the Statistical Correlation Score (0–100). This value indicates how closely the audio signal in that segment matches the mathematical template of a specific chord.
- 80–100: High confidence; the audio clearly aligns with a major or minor triad.
- Below 50: Low confidence; this may occur during complex passages, fast transitions, or where there is significant background noise.
You can report directly via our Contact Form or email us at below emails.