Example input
A 2:48 lo-fi instrumental with a quiet intro and recurring piano hook.
Audio analysis · Free utility
Turn a track into an editable music prompt
Upload audio you can use. The result keeps measured properties separate from creative interpretation so you know which parts are facts and which are suggestions.
Audio measurements happen locally; only numeric features and your text choices continue. Sign-in is requested only when you run the tool.
Indexable example
See the job before you run it
This is a static example, not a pre-generated claim. Your actual result depends on the input you provide.
Example output
Measured: about 74 BPM, minor key, low-to-medium energy. Inferred prompt: dusty lo-fi hip-hop with soft drums, electric piano, warm bass, and a restrained verse-hook structure.
How it works
A short, reviewable workflow
- 01
Upload authorized audio
Choose a clear track and wait for its local measurements.
- 02
Review fact versus inference
Treat tempo and duration differently from mood or instrument suggestions.
- 03
Edit the prompt
Remove uncertain descriptors before using the brief for new original music.
Useful when
Three practical use cases
Document a demo
Create a readable brief for a track already in progress.
Explore a new direction
Use measured traits as a starting point without copying the source recording.
Brief a visual
Carry energy and structure notes into a music-video concept.
Questions
What to know first
Which details are measured?
Duration, tempo, key estimates, waveform energy, and section boundaries can be measured or calculated.
Are genre and instruments guaranteed to be correct?
No. Those are labeled as inferred suggestions for your review.
Can I use any commercial song?
Only upload audio you own or are authorized to process; the tool does not grant reuse rights.
Keep working
Related free tools
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BPM Finder
Analyze tempo in the browser and compare plausible half-time or double-time readings. Use the result as a practical estimate, especially for songs with changing tempo.
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Song Key Finder
Analyze pitch-class energy in an audio file and review the strongest key candidates. The result includes Camelot notation without pretending every ambiguous song has one certain answer.
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Song Structure Finder
Generate an approximate arrangement map from the waveform and repeating audio features. Every boundary remains editable because musical structure is not always unambiguous.
Next step