Practical music tools
Less guessing. Better combinations.
Start with numbers you already know. These tools do not need copyrighted audio uploads and explain every recommendation in plain language.
Mashup Compatibility Checker
Compare two songs by BPM and key, then get a role and transition recommendation.
Check two songs →LIVE · 02Tap BPM & Key Workspace
Tap BPM along with any song, translate musical keys into Camelot codes and find nearby compatible keys.
Open workspace →LIVE · 03Key Transposer
See how a musical key moves when you pitch a track up or down by semitones.
Transpose a key →LIVE · 04BPM to ms Calculator
Turn a tempo into delay and reverb times for straight, dotted and triplet notes.
Calculate delay times →Why manual inputs first?
Useful without handling anyone’s recordings.
The launch tools work from song information you enter. We will add private, auto-deleting audio analysis only after its accuracy, storage and rights workflow are ready.