Upload a song or instrument recording to detect its chord progression, key, and BPM, then follow the synchronized timeline, edit labels, and export the chord chart.
Drop a song, accompaniment, or instrument recording here, or import from:
A song to chords converter analyzes harmony across a recording and turns it into a timed chord progression. Instead of returning one estimated key, it shows where each chord begins and ends throughout the song.
Play the recording and follow every detected chord change at the matching timestamp.
Correct an uncertain chord before saving the chart for practice, arranging, or transcription.
Review the estimated key and tempo alongside the complete chord progression.
Download a readable chord chart or a detailed timeline for another music workflow.
The analysis begins locally after the audio is decoded in your browser.
Choose a complete mix, instrumental, backing track, demo, or clear guitar or piano recording.
Play the track and select any timeline section to hear the chord in context.
Change detection detail or stability when the first chart is too simple or too busy.
Correct labels when needed, then download the progression as TXT or CSV.
Automatic detection is a practical starting point when listening by ear would take too long.
See the harmonic outline before practicing each section on guitar, piano, or another instrument.
Turn a rehearsal take or phone recording into an editable progression with timestamps.
Identify repeating harmony before changing instrumentation, structure, or key.
Compare chord rhythm, key, tempo, and repeated sections during production work.
Both methods benefit from listening and musical judgment.
| Automatic song to chords | Manual transcription | |
|---|---|---|
| Starting speed | Produces a complete first chart quickly | Requires repeated listening |
| Timing | Includes synchronized chord sections | Must be marked manually |
| Complex harmony | May simplify inversions and extensions | Can capture details with a trained ear |
| Best workflow | Analyze, review, and correct | Confirm and refine the final chart |
Dense mixes, bass inversions, altered chords, effects, and tuning differences can require a final correction by ear.
Upload the song and let the analyzer build a synchronized progression. Play each section, compare it with your instrument, and edit labels that need musical judgment.
Yes. It accepts common audio formats including MP3, WAV, M4A, FLAC, AAC, OGG, AIFF, and compatible browser media.
No. A key finder estimates the overall tonal center, while a song chord finder maps changing harmony across time.
Yes, when the notes are clear enough in the recording. Complete mixes may be less certain than isolated guitar or piano.
The Common and Extended detail modes include suspended, diminished, augmented, seventh, and other richer chord candidates.
Melody notes, bass inversions, percussion, tuning, and overlapping instruments can affect the spectrum. Listen to the section and edit the label when needed.
Yes. TXT creates a readable chart, while CSV includes start time, end time, duration, label, confidence, and edit status.
Find BPM from a song, loop, or recording, review confidence, and compare half-time or double-time readings.
Analyze a song, loop, acapella, instrumental, or recording locally, then review confidence and compatible keys.
Detect chord changes, review a synchronized timeline, correct labels, and export a TXT or CSV chord chart.
Select notes or mark a guitar shape, hear the voicing, and compare likely chord names.
Search common major, minor, seventh, and major seventh shapes, hear them, and open detailed references.
Compare chord diagrams by root, quality, and difficulty, then open a detailed reference or print the chart.
Measure beats per minute from your taps with timing consistency feedback.
Use your microphone to tune guitar, bass, ukulele, cavaquinho, violin-family instruments, mandolin, balalaika, banjo, or any chromatic instrument.
Use a live microphone or recording to measure your lowest note, highest note, octave span, and a range-based voice type estimate.
Analyze complete audio files with EBU R128 loudness measurement in your browser.
Check six frequencies in each ear and compare both sides with an instant visual result.
Run a guided high-frequency check or mark your cutoff during a continuous 20 Hz to 20 kHz sweep.
Verify speaker channels and run controlled playback checks directly in your browser.
Verify headphone channels, stereo movement, bass playback, noise, and phase online.
Select an input device, watch the live level, record a short sample, and hear your microphone without uploading audio.
Verify left and right output, stereo, bass, phase, microphone level, recording, and playback in your browser.
