AI Tool
Detect BPM, key & chord progressions.
Drop any track and see its tempo, key and full chord chart — powered by our browser AI engine.
Drop your audio file here
MP3, WAV, M4A, FLAC • Max 50MB
Highlights
BPM & Key Detection
Instantly identifies the tempo and musical key of any song using onset analysis and chromagram profiles.
Chord Progression
Recognizes 168 chord types including major, minor, 7th, diminished, augmented, and suspended chords.
Visual Timeline
See chords mapped on an interactive timeline — color-coded by root note with confidence scores.
Guide
How to Get Best Results
Best input
- ✓Clean recordings with clear harmony (piano, guitar, etc.)
- ✓Pop, rock, jazz and folk with standard chord progressions
- ✓Isolated instrument stems for maximum accuracy
Less ideal
- ✗Heavy electronic / EDM with synthesized sounds
- ✗Drum-heavy tracks without clear pitch content
- ✗Complex orchestral arrangements with many layers
Pro tipUse the Stem Separator to isolate the harmonic instruments first, then analyze that stem for much higher chord accuracy.
SupportedMP3WAVM4AFLAC